Chemical peels

Evaluating the Efficacy and Safety of Alpha-Hydroxy Acids in Dermatological Practice: A Comprehensive Clinical and Legal Review

The global market for alpha-hydroxy acids (AHAs) is undergoing significant expansion, propelled by increasing demand for skincare products that address aging and environmental damage. This review focuses on the dermatological applications of AHAs, particularly in cosmetic formulations like chemical peels. We have identified that AHAs, such as glycolic and lactic acids, enhance skin rejuvenation by promoting apoptosis in skin cells, boosting collagen and elastin synthesis, and improving skin texture and luminosity. Our comprehensive analysis reveals a nuanced understanding of AHAs' effectiveness across various skin types and conditions, demonstrating their broad utility in treating conditions like acne, hyperpigmentation, and photoaging. However, the optimal concentrations for therapeutic efficacy with minimal side effects are yet to be precisely defined, necessitating further research. Regulatory compliance is underscored as essential for the safe application of AHAs in cosmetics, with international guidelines recommending specific concentrations and pH levels to minimize potential skin irritation. In Conclusion, the review highlights the effectiveness of AHAs in cosmetic dermatology, emphasizing the necessity for continued research and rigorous regulatory adherence to maximize their safe and beneficial application worldwide.

A clinical and novel dermoscopic investigation of combined peels as a hand aging treatment

BACKGROUND

The hands are one of the areas where skin aging is most noticeable, alongside the face, but limited studies used dermoscopic evaluation on hand aging. The Dermoscopy Photoaging Scale (DPAS) is frequently used to assess face aging but is never used for hand aging. Treating skin aging using chemical peeling is a commonly used method to rejuvenate the skin on the hands, as it is relatively affordable. Using multiple chemical peels may yield more significant results.

AIMS

To determine the effectiveness of a chemical peeling combination in retarding hand aging and to assess the utility of DPAS in this process.

METHODS

This study involved 69 Fitzpatrick skin types III-IV volunteers aged 20-69. One hand of each participant was treated with 20% glycolic acid (GA), while the other received a combination of peels consisting of 20% GA and 15% trichloroacetic acid (TCA). The hands were clinically examined before and after the treatments, and dermoscopic examinations were performed using a modified DPAS.

RESULTS

Four treatments improved clinical and dermoscopic characteristics in both hands. The combined peeling considerably improved pigmentation intensity on the dorsal hand compared to the GA peel (p < 0.001). Post-chemical peeling patient satisfaction increased significantly.

CONCLUSIONS

The modified DPAS is a valuable instrument to assess the signs of hand aging. The combination of GA and TCA effectively improves skin aging of the hands and offers an accessible and economical option for addressing skin aging.

Procedural and surgical treatment modalities for acne scarring: Part II

The optimal treatment of acne scarring is challenging because several factors need to be considered, including the type and number of scars, Fitzpatrick skin type, and the amount of downtime permissible to the patient. This second article in the continuing medical education series discusses the procedural treatments available for acne scarring, including the use of chemical peels, fillers, radiofrequency microneedling, lasers, and surgical procedures. The indications for each modality, evidence for its benefits, and the adverse effects are discussed. This section aims to help guide the reader select and implement the most appropriate treatment based on the patient's preferences, acne scarring, and skin type.

Glycolic acid-induced disruption of epidermal homeostasis in a skin equivalent model: Insights into temporal dynamics and mechanisms

Glycolic acid (GA) is extensively used in cosmetic formulations and skin peeling treatments but its adverse effects, notably severe disruption of epidermal structure, limit its clinical utility. However, the detailed impact of GA on epidermal homeostasis, including changes in structure and protein expression over time, is not fully understood. This study employed a reconstructed human epidermis (RHE) model to assess the effects of varying GA concentrations on epidermal proliferation, differentiation, and desquamation at different time points. Through histology, immunofluorescence, and immunohistochemistry, we observed that 35% GA concentration adversely caused abnormal epidermal homeostasis by affecting epidermal proliferation, differentiation and desquamation. Our findings reveal time-specific responses of key proteins to GA: Filaggrin, Involucrin, Loricrin, and Ki67 showed very early responses; KLK10 an early response; and AQP3 and K10 late responses. This research provides a detailed characterization of GA's effects in an RHE model, mimicking clinical superficial peeling and identifying optimal times for detecting GA-induced changes. Our results offer insights for designing interventions to mitigate GA's adverse effects on skin, enhancing the safety and efficacy of GA peeling treatments.

A Comprehensive Bibliographic Review Concerning the Efficacy of Organic Acids for Chemical Peels Treating Acne Vulgaris

Acne vulgaris stands out as the most prevalent skin disorder among teenagers and young adults, causing physical discomfort and considerable economic and psychological burdens on individuals and society. A wide range of topical and systemic therapies are available in acne treatment. Chemical peeling is a skin resurfacing technique designed to rebuild healthy skin using exfoliating substances, a simple and affordable process with various dermatological uses. Chemical peels, classified as superficial, medium, and deep, have been utilized for acne vulgaris and multiple other skin issues. In these chemical peels, a diverse range of chemical substances is employed, each with its unique mode of action. Among these, α-hydroxy and β-hydroxy acids have gathered attention for their efficacy in reducing acne lesions and enhancing overall skin appearance. Acids, such as salicylic acid, glycolic acid, or lactic acid, are commonly used in chemical peels due to their exfoliating and sebum-regulating properties. Despite the widespread use of these acids, there exists a lack of consensus regarding the most effective acid type and concentration for treating acne-prone skin. This review aims to bridge this knowledge gap by evaluating the effectiveness and safety of various organic acids used in chemical peels specifically for acne-prone skin. The findings of this comprehensive bibliographic review indicate that organic acid-based chemical peels represent effective and safe treatment options for individuals with acne-prone skin. Their adaptability sets these treatments apart; the choice of organic acid can be tailored to meet individual patient needs and tolerability levels. This personalized approach ensures that patients receive optimal care while minimizing the risks associated with the treatment. As research in this field progresses, it is anticipated that a more nuanced understanding of the ideal acid type and concentration will emerge, further enhancing the efficacy and safety of chemical peels for acne-prone skin.

MALDI Mass Spectrometry Imaging and Semi-Quantification of Topically Delivered Lactic Acid

BACKGROUND

Lactic acid is a common active ingredient in many topical skincare products; however, measuring its delivery into the skin is challenging due to the presence of a large level of endogenous lactic acid. In this study, matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) was used to quantitatively and qualitatively measure the delivery of lactic acid into the skin from a range of topical skincare products.

MATERIALS AND METHODS

Porcine skin samples were treated with various skincare products containing lactic acid. After 24 h, skin samples were sectioned and treated via H&E staining or prepared for MALDI-MSI using chemical derivatization. Samples were then analyzed by MALDI-MSI imaging to obtain lactic acid distribution in the entire skin section.

RESULTS

Due to the high level of endogenous lactic acid in the skin, a "triple isotope" of lactic acid (L-Lactic acid-13 C3 ), was needed to provide full resolution from the skin's background signal with MALDI-MSI. With this approach, the topically delivered lactic acid could be quantitatively and qualitatively analyzed from a variety of skincare products.

CONCLUSIONS

The combination of L-Lactic acid-13 C3 and MALDI-MSI was successfully used to quantitatively and qualitatively measure the topical delivery of lactic acid from a variety of skincare products. This approach could be used in future work to better understand the mode of action of lactic acid as an active ingredient in skincare products.

Enamel and Dentin Etching with Glycolic, Ferulic, and Phosphoric Acids: Demineralization Pattern, Surface Microhardness, and Bond Strength Stability

This study evaluated the etching pattern, surface microhardness, and bond strength for enamel and dentin submitted to treatment with phosphoric, glycolic, and ferulic acids. Enamel and dentin blocks were treated with phosphoric, glycolic, and ferulic acid to evaluate the surface and adhesive interface by scanning electron microscopy (2000×). Surface microhardness (Knoop) was evaluated before and after etching, and microtensile bond strength was evaluated after application of a two-step adhesive system (Adper Single Bond 2, 3M ESPE) at 24 hours and 12 months storage time points. Analysis of variance (ANOVA) and Tukey's test showed a decrease in the microhardness values for both substrates after application of each acid (p<0.0001). The reduction percentage was significantly higher for enamel treated with phosphoric acid (59.9%) and glycolic acid (65.1%) than for ferulic acid (16.5%) (p<0.0001), and higher for dentin that received phosphoric acid (38.3%) versus glycolic acid (27.8%) and ferulic acid (21.9%) (p<0.0001). Phosphoric and glycolic acids led to homogeneous enamel demineralization, and promoted the opening of dentinal tubules, whereas ferulic acid led to enamel surface demineralization and partially removed the smear layer. The adhesive-enamel interface showed micromechanical embedding of the adhesive in the interprismatic spaces when phosphoric and glycolic acids were applied. Ferulic acid showed no tag formation. Microtensile bond strength at both time points, and for both substrates, was lower with ferulic acid (p=0.0003/E; p=0.0011/D; Kruskal Wallis and Dunn). The bond strength for enamel and dentin decreased when using phosphoric and glycolic acids at the 12-month time evaluation (p<0.05). Glycolic acid showed an etching pattern and microhardness similar to that of phosphoric acid. Ferulic acid was not effective in etching the enamel or dentin, and it did not provide satisfactory bond strength to dental substrates.

Expert recommendations on supportive skin care for non-surgical and surgical procedures

A thorough knowledge of non-surgical procedures (laser, peelings, injections, threads) and surgical procedures (combined surgeries and skin grafts), including contraindications and potential risks and side effects, (e.g. infection, hypopigmentation, hyperpigmentation, and scarring) is essential to be able to reduce their incidence and ensure the patient receives the most benefit from the procedure. Individuals with darker skin and of high Fitzpatrick phototype are at higher risk of dyschromias, notably melasma and post-inflammatory hyperpigmentation, which may be treated using aesthetic procedures but may also arise as a complication of some procedures. A group of experts in cosmetic surgery and dermatology reviewed the published literature and discussed recommendations for optimizing outcomes with practical advice on supportive skincare before, during and after non-surgical or surgical procedures. A broad-spectrum sunscreen with a high sun protection factor against UVB and high protection against UVA, especially long UVA, is essential for all treatment modalities for the prevention and potential improvement of pigmentation disorders. Supportive skin care management to prepare, cleanse and protect the skin and post-procedure skin care with healing and anti-inflammatory ingredients are recommended to speed up regeneration and wound healing whilst minimizing scarring and downtime. Additionally, adjunctive skin care to procedures with antioxidant, anti-ageing and lightening properties may enhance skin benefits.

Facial psoriasis in the etiology of prolonged erythema following medium-depth chemical peels for severe photodamage

BACKGROUND

Chemical peeling is the controlled wounding of the epidermis and dermis for skin rejuvenation, involving the application of ablative agents to induce keratolysis and regeneration of damaged cell layers. Prolonged erythema is one complication of this procedure. We report the prevalence and probable etiology of prolonged facial erythema in a cohort of patients treated with medium-depth chemical peels.

MATERIALS AND METHODS

A retrospective audit was conducted of all medium-depth facial chemical peels performed at two major teaching hospitals. All patients had severe facial photodamage affecting at least 75% surface area of the face. The occurrence of prolonged erythema following this peel was then identified and analyzed.

RESULTS

Of our treatment cohort (n = 82, 51 women, 31 men) with 60 years mean (61.3 years for women, 56.7 years for men), 10 patients (12%; eight women, two men) experienced prolonged erythema beyond a month of treatment. Facial psoriasis was not apparent at the time of chemical peel but manifested as prolonged erythema beyond the expected timeframe following the procedure.

CONCLUSION

When patients experience prolonged erythema beyond a month of treatment and fail to respond to standard treatments, clinicians should examine carefully for extra-facial psoriasis prior to this procedure, and also consider facial psoriasis a possible cause of prolonged post-peel erythema.

Insurance Coverage of Dermabrasion and Chemical Peel Procedures: A Critical Analysis of 58 American Insurance Companies

Introduction Dermabrasion and chemical peels are infrequently utilized methods of treatment for medical-grade conditions despite demonstrations of favorable outcomes. Insurance coverage status has previously been shown to impact availability and accessibility to specific treatments. The purpose of this study is to evaluate the rate of insurance coverage provided for dermabrasion and chemical peel procedures in the treatment of acne, acne scarring, and non-melanoma skin cancers (NMSC). Methods A cross-sectional analysis of 58 insurance companies by web-based search or phone interview determined the number of insurers with a publicly available policy on dermabrasion or chemical peels. Coverage status and any corresponding criteria were extracted from existing company policies. Results Thirteen (22%) and 22 (38%) policies discussed dermabrasion in the treatment of basal cell carcinoma and actinic keratosis, with 62% and 73% of these policies providing coverage. Acne scarring was discussed in significantly more dermabrasion policies than basal cell carcinoma (45% vs 22%; p=0.018). However, significantly more insurers denied coverage of dermabrasion for active acne and acne scarring when compared to dermabrasion to treat basal cell carcinoma or actinic keratosis (p<0.001). Eighty-seven percent of companies (n=20) with a chemical peel policy for premalignant lesions would provide coverage, with required criteria present in 95% (n=19) of the policies that would cover chemical peels for actinic keratosis specifically. Of the 25 companies (43%) that discussed the treatment of acne with chemical peel procedures, 14 (56%) provided coverage, and 11 (44%) denied coverage. Coverage was denied by significantly less insurers for the treatment of active acne with chemical peel procedures compared to treatment with dermabrasion (44% vs 83%; p<0.006). Conclusion Significant discrepancies were noted in both the presence of a public policy and the coverage status of dermabrasion or chemical peel procedures among the United States health insurance companies. These inconsistencies, along with multiple criteria required for coverage, may create an artificial barrier to receiving care for specific medical-grade conditions.

Post-acne symptom complex. Approaches to therapy

Postacne-persistent skin changes that appear as a result of long-term acne, inadequate therapy and manipulations performed in the management of this group of patients. The post-acne symptom complex is stable skin changes that appear as a result of long-term acne inadequate therapy and manipulations performed during the management of this group of patients. The pathogenetic mechanisms underlying the launch of acne currently look as follows: androgens cause hyperseborrhea, sebum lipids activate innate immunity; pathological keratinization due to the production of IL-1 inflammatory mediator and androgen hyperproduction; Cutibacterium acnes activate innate immune responses through toll-like receptors and metalloproteinases, stimulate the production of antimicrobial peptides and sebum production. The subsequent rupture of the follicles activates the wound healing process. Depending on the genetically determined features of the course of the inflammatory process, various individual postacne changes of the skin will prevail in different patients. The article highlights the main factors influencing the formation of post-acne, pathogenetic mechanisms underlying the formation of these changes, systematizes modern data on the classification, morphological and pathohistological characteristics of scars. Quantitative and qualitative scales of assessment of post-acne scars for determining the severity of the pathological process are presented, differentiated approaches to modern methods of therapy are discussed in detail, including the advantages and disadvantages of the most common methods of treating patients based on the principles of evidence-based medicine using a number of personalized methods.

Can it make me white again? A case report of 88% phenol as a depigmenting agent in vitiligo

Vitiligo is the most common depigmenting disorder. However, therapies prove to be time-consuming, costly, or slow to show efficacy. Here, we present a case of a 74-year-old female with vitiligo who underwent full-body depigmentation treatment 50 years ago. Brown patches of repigmentation appeared on the patient’s face and arms and were eventually treated with 88% phenol. Patient was later switched to compounded 3% glutathione cream for a more sustained effect. Phenol was an accessible, economical, and easily administrable therapeutic option that can result in short-term depigmentation.

Effectiveness of water as the neutralising agent for glycolic acid peels in skin phototypes IV-V

The aim of the study is to evaluate the effectiveness of water as a substitute for sodium bicarbonate plus solution in the neutralisation process of chemical peeling using a 35% glycolic acid solution. This randomised, double-blind, split-face, controlled trial was conducted in an outpatient setting. A total of 126 healthy patients with skin phototypes IV-V aged between 18 and 60 years old were recruited. Chemical peeling was performed with 35% glycolic acid solution. One side of the face was neutralised with water, and the other side of the face was neutralised with a sodium bicarbonate plus solution. The main outcome of this study was measured by the degree of erythema, pruritus and pain scores. Significant difference in the pain score immediately after the neutralisation process of the chemical peeling with glycolic acid was seen. However, there were no significant differences in the degree of erythema or the pruritus score. These results indicate that water can be used as a substitute for sodium bicarbonate plus solution in the neutralisation process of chemical peeling with 35% glycolic acid in patients with skin phototypes IV-V.

Recognizing and Managing Complications in Laser Resurfacing, Chemical Peels, and Dermabrasion

Skin resurfacing techniques allow improvement of skin texture and color. This includes the effacement of wrinkles, signs of photoaging, and the softening of scars. Laser resurfacing, chemical peels, and dermabrasion are associated with overlapping risks of complications. The most common of these include infection, hypopigmentation, hyperpigmentation, and scarring. Patient evaluation helps provide treatment that gives the maximal benefit with a minimization of risks. This includes understanding the extent of each patient's issues (Glogau scale) and Fitzpatrick type. A thorough knowledge of potential risks will reduce their incidence and optimize early recognition and treatment of these complications when they do occur.

Evaluation of combination therapy with peeling added to minimal invasive blepharoplasty in lower eyelid rejuvenation

INTRODUCTION

Aging is an inevitable process in life that can pose unsatisfactory changes in appearance. Recently, rejuvenation surgeries have opened an exciting new window toward people who are vulnerable according to their facial appearance. Periocular plastic microsurgeries are among the most common aesthetic surgeries with various outcomes. The current study was aimed to compare outcomes of blepharoplasty with and without peeling regarding lower eyelid rejuvenation.

METHODS

This is a randomized clinical trial study conducted on 30-patients referred for inferior lid rejuvenation in 2017-18. Patients were randomly divided into two 15-member subgroups of microinvasive blepharoplasty with and without peeling. Peeling for the group underwent blepharopeeling was performed all over the inferior periocular region using Phenol 89%. Then, skin and underlying muscle were incised superficially, and underlying fat tissue was excised. The other group underwent blepharoplasty without peeling. Patients were followed daily for 2 months to assess complications, patients' and physicians' satisfaction.

RESULTS

Two assessed groups were not statistically different regarding age and gender distribution (P-value = .417 and .666, respectively). Considering patients' opinion, symmetry, scar formation, skin laxity, swelling, and total satisfaction score were not different between two groups (P-value > .05) while physicians presented similar outcomes except for better scar formation status of peeling add-on therapy (P-value = .042). Rate of adverse effects was significantly higher among those under blepharoplasty plus peeling treatment (P-value < .05).

CONCLUSION

Outcomes of blepharoplasty alone versus blepharoplasty plus peeling were not significantly different regarding both patients' and physicians' assessments in general while fewer complications due to blepharoplasty without peeling were presented.

Evaluation of autologous adipose-derived stem cells vs. fractional carbon dioxide laser in the treatment of post acne scars: a split-face study

BACKGROUND

Scarring is a distressing outcome of acne, as it causes cosmetic and psychological problems to the patients. Unfortunately no single treatment is satisfactory; instead, employing multiple modalities may have better outcome. Autologous adipose tissue-derived adult stem cells (AT-ASCs) and their secretory factors can stimulate collagen synthesis; angiogenesis and migration of fibroblasts thus regenerate damaged tissues. Also, conventional treatments for acne scarring, such as lasers and topical regimens, induce new collagen synthesis via activation of dermal fibroblasts or growth factors. The aim of the study was to verify the effectiveness of AT-ASCs for the treatment of acne scarring vs. the fractional carbon dioxide laser (FxCR).

SUBJECTS AND METHODS

Split face comparative study included 10 adult patients with post-acne scars on both sides of the face. One side received AT-ASCs single injection while the other received three sessions of FxCR. Scars were then assessed using the global scoring system Goodman and Baron, scar area percent using NIH ImageJ software and functional assessment by measuring the transepidermal water loss (TEWL) and skin hydration. Both sides were followed for three months.

RESULTS

A significant improvement in the degree of scar severity, scar area percent, skin hydration, and TEWL after 3 months of treatment on both sides of the face with insignificant differences between both treatment modalities, provided that AT-ASCs treatment was employed once vs. three sessions of FxCR.

CONCLUSION

One injection of AT-ASCs is as effective as three sessions of FxCR in the treatment of atrophic acne scars.

The use of lasers and light sources in skin rejuvenation

Smooth, wrinkle-free skin is associated with supposed attractiveness, youthfulness, and health, while rhytids have a negative impact on one's perceived appearance, image, and self-esteem. Noninvasive esthetic procedures such as laser or light therapy have been used to achieve and attain a more youthful appearance. Currently, there is a wide range of lasers and devices available for the regeneration and healing of skin. Lasers and light sources for skin rejuvenation involve the removal of aged skin tissue via thermal heat from high-powered lasers, stimulating the surrounding tissues to recover through natural wound-healing processes. In contrast, photobiomodulation, which makes use of low energy lasers or light emitting diodes, uses no heat and has shown positive effects in the reduction of wrinkles and improving skin laxity.

Investigation of five α-hydroxy acids for enamel and dentin etching: Demineralization depth, resin adhesion and dentin enzymatic activity

OBJECTIVES

Surface conditioning of enamel and dentin is a key step during adhesive restorative procedures and strategies. The aim of this study was to investigate the effectiveness of five α-hydroxy-acids (AHAs) as enamel and dentin surface etchants.

METHODS

Enamel and dentin specimens were prepared from human molars to determine the depth of demineralization by optical profilometry (Δz), the resin bond strength to enamel and dentin (μTBS), the micro-permeability of dentin-resin interfaces, and the gelatinolytic activity of dentin matrix induced by AHAs [glycolic (GA), lactic (LA), citric (CA), malic (MI) and tartaric (TA)] and controls [phosphoric (PA) and maleic (MA)]. All acids were prepared at 35% concentration. Adhesion studies employed Adper Single Bond Plus bonding system. Data were individually processed and analyzed by ANOVA, post-hoc tests and Pearson correlations (α = 0.05).

RESULTS

AHA exhibited statistically lower depth of demineralization of enamel and dentin (average 4 fold) than controls (p < 0.001). In enamel, MA and PA etching resulted in higher μTBS than AHA groups (p < 0.001). In dentin, GA, TA, CI and LA etching resulted in statistically similar μTBS than PA (p < 0.05). The hybrid-layer (HL) thickness and interfacial micro-permeability intensity were statistically lower for AHA groups (p < 0.05). A significant positive correlation was observed between the intensity of micro-permeability and the thickness of HL (p < 0.05). AHA etchants elicited lower dentin enzymatic activity than controls (p < 0.05).

SIGNIFICANCE

AHAs effectively etched enamel and dentin surfaces. In particular, GA and TA resulted in suitable μTBS and sealing ability as well as induced less gelatinolytic activity in dentin than PA and MA.

Radio Peel-Synergism Between Nano-fractional Radiofrequency and 20% Trichloroacetic Acid Chemical Peeling

BACKGROUND

Microneedling fractional radiofrequency (FRF) and chemical peels are widely used for skin rejuvenation.

OBJECTIVE

The authors aimed at evaluating the efficacy and safety of FRF and trichloroacetic acid 20% (TCA20%) peel in different combinations for determining the optimal treatment protocol.

METHODS

In this prospective clinical comparison of 4 protocols (FRF alone, TCA20% alone, TCA20% before FRF [TCA→FRF], and TCA20% following FRF [FRF→TCA]), the patients underwent 3.8 ± 1.2 successive treatments of one protocol at 4- to 6-week intervals. The patients and 2 dermatologists evaluated improvement of pigmentation and dyschromia, erythema and blood vessels, laxity and wrinkling, and skin imperfections using a global aesthetic improvement scale (GAIS) and a 1 to 5 scoring system. The patients rated their satisfaction and reported adverse effects and reduced activity. Skin impedance and histological changes following the different protocols were also evaluated on 3 additional volunteers.

RESULTS

Sixty-seven patients (age range 22-80 years) were studied. TCA→FRF caused skin impedance to decrease, yielding a more superficial and less-efficient penetration of FRF energy. FRF→TCA produced more significant improvement in overall facial skin appearance (GAIS) and most evaluated skin parameters. Adverse effects and satisfaction rates were similar for all approaches.

CONCLUSION

FRF→TCA had the best synergistic effect on skin rejuvenation compared with FRF or TCA20% alone and TCA→FRF.

Is There an Association Between Hyperbaric Oxygen Therapy and Improved Outcome of Deep Chemical Peeling? A Randomized Pilot Clinical Study

Background

Phenol chemical peeling (PCP) treatment is associated with prolonged recovery and sustained adverse events. Hyperbaric oxygen therapy (HBOT) is known to accelerate wound healing. The purpose of the current study was to evaluate the effect of HBOT on PCP recovery period and adverse events.

Methods

This is a pilot randomized controlled clinical study. Women following PCP underwent 5 consecutive daily HBOT sessions, compared with PCP alone. Pain, pruritus, erythema, crusting, scaling, and edema were daily evaluated up to 28 days following PCP. Photographs taken on days 14 and 35 following PCP were assessed. Confidence to appear in public was assessed 14 days following PCP.

Results

Eight participants equally assigned to HBOT and control groups. Lower severity scores for erythema, scaling, and pruritus were documented in the HBOT group (mean difference 1.19, P = .006; .84, P = .04; and 2.19, P = .001, respectively). Photographic assessment severity score was higher for skin tightness, edema, erythema, crusting, and scaling in the control group on day 14 post PCP (P < .05) and for erythema on day 35 post PCP (P < .05). Epithelialization percentage was higher in the HBOT group on day 14 post PCP compared with controls (98.5% ± 1% vs 94.2% ± 1%; P = .021). The HBOT group scored higher in confidence to appear in public (20.8 ± 1.7 vs 14.5 ± 1.3; P = .029).

Conclusion

Hyperbaric oxygen therapy following PCP is associated with faster recovery as assessed by both patients and caregivers. So far, HBOT was mainly used in the treatment of problematic or chronic wounds. Our study suggests expanding the indications in which hyperbaric oxygen treatment is applicable and recommended.

Comparative instrumental evaluation of efficacy and safety between a binary and a ternary system in chemexfoliation

OBJECTIVE

To instrumentally evaluate the efficacy and the safety of a new ternary system chemo exfoliating formulation (water-dimethyl isosorbide-acid) vs traditional binary systems (water and acid) where the acid is maintained in both the systems at the same concentration.

METHODS

Different peelings (binary system pyruvic acid and trichloroacetic acid-TCA, and ternary system pyruvic acid and TCA) were tested on the volar forearm of 20 volunteers of both sexes between 28 and 50 years old. The outcomes were evaluated at the baseline, 10 minutes, 24 hours, and 1 week after the peeling by means of noninvasive skin diagnosis techniques. In vivo reflectance confocal microscopy was used for stratum corneum evaluation, transepidermal waterloss, and Corneometry for skin barrier and hydration, Laser Doppler velocimetry in association with colorimetry for irritation and erythema analysis.

RESULTS

The instrumental data obtained showed that the efficacy and safety of the new ternary system peel compounds were significantly higher compared with the binary system formulations tested. The new formulation peels improved chemexfoliation and reduced complications such as irritation, redness, and postinflammatory pigmentation compared to the traditional aqueous solutions.

CONCLUSION

The study showed that ternary system chemexfoliation, using a controlled delivery technology, was able to provide the same clinical effects in term of stratum corneum reduction with a significantly reduced barrier alteration, water loss, and irritation/erythema compared to traditional binary system peels.

Literature Review of Cosmetic Procedures in Men: Approaches and Techniques are Gender Specific

The proportion of men receiving non-surgical cosmetic procedures has risen substantially in recent years. Various physiologic, anatomic, and motivational considerations differentiate the treatments for male and female patients. Nevertheless, research regarding approaches to the male cosmetic patient is scarce. We sought to provide an overview and sex-specific discussion of the most popular cosmetic dermatologic procedures pursued by men by conducting a comprehensive literature review pertaining to non-surgical cosmetic procedures in male patients. The most common and rapidly expanding non-surgical interventions in men include botulinum toxin, filler injection, chemical peels, microdermabrasion, laser resurfacing, laser hair removal, hair transplantation, and minimally invasive techniques for adipose tissue reduction. Important sex-specific factors associated with each of these procedures should be considered to best serve the male cosmetic patient.

Chemical peels in active acne and acne scars

Chemical peeling is a widely used procedure in the management of acne and acne scars. It causes controlled destruction of a part of or the entire epidermis, with or without the dermis, leading to exfoliation and removal of superficial lesions, followed by regeneration of new epidermal and dermal tissues. The most frequently used peeling agents are salicylic acid, glycolic acid, pyruvic acid, lactic acid, mandelic acid, Jessner solution, trichloroacetic acid, and phenol. The appropriate peel is chosen based on the patient's skin type, acne activity, and type of acne scars. Combination peels minimize side effects. In acne scars, chemical peels may be combined with other procedures to achieve better clinical results. A series of chemical peels can lead to significant improvement over a short period, leading to patient satisfaction and maintenance of clinical results. © 2016 Elsevier Inc. All rights reserved.

Noninvasive Facial Rejuvenation. Part 3: Physician-Directed-Lasers, Chemical Peels, and Other Noninvasive Modalities

A proper knowledge of noninvasive facial rejuvenation is integral to the practice of a cosmetic surgeon. Noninvasive facial rejuvenation can be divided into patient- versus physician-directed modalities. Patient-directed facial rejuvenation combines the use of facial products such as sunscreen, moisturizers, retinoids, α-hydroxy acids, and various antioxidants to both maintain youthful skin and rejuvenate damaged skin. Physicians may recommend and often prescribe certain products, but patients are in control with this type of facial rejuvenation. On the other hand, physician-directed facial rejuvenation entails modalities that require direct physician involvement, such as neuromodulators, filler injections, laser resurfacing, microdermabrasion, and chemical peels. With the successful integration of each of these modalities, a complete facial regimen can be established and patient satisfaction can be maximized. This article is the last in a three-part series describing noninvasive facial rejuvenation. Here the authors review the mechanism, indications, and possible complications of lasers, chemical peels, and other commonly used noninvasive modalities.

Efficacy of Modified Jessner's Peel and 20% TCA Versus 20% TCA Peel Alone for the Treatment of Acne Scars

Introduction:

There is a paucity of studies on the use of chemical peels for acne scars among the Asian population. A trichloroacetic acid (TCA) and Jessner's combination chemical peel, originally described by Monheit, is said to be better than a TCA peel alone.

Aims:

The aim of the study was to compare the efficacy of 20% TCA and Jessner's solution versus 20% TCA alone for the treatment of acne scars.

Materials and Methods

: The patients were divided into two groups of 25 patients each. Chemical peeling was done in both the groups. In Group I, chemical peeling with Jessner's peel followed by 20% TCA was done and in Group II patients chemical peeling with 20% TCA peel alone was done.

Results:

In Group I (Jessner's peel and 20% TCA), mild improvement of acne scars was seen in 8% cases, moderate improvement in 32% cases and marked improvement of acne scars was seen in 60% patients. In Group II (20% TCA), mild improvement of acne scars was seen in 32% cases, moderate improvement in 40% cases and marked improvement of acne scars was seen in 28% patients. But, the difference in improvement of acne scars was not statistically significant in both the groups (P value > 0.05).

Tretinoin-based formulations - influence of concentration and vehicles on skin penetration

Tretinoin is used in the management of acne and it is part of a gold standard treatment for photoaging. It has also been reported as an agent for superficial chemical peeling in highly concentrated formulations with few considerations about skin penetration. The aim of this study was to evaluate the influence of drug concentration and vehicles currently used on skin penetration of tretinoin. In vitro permeation tests were carried out using Franz diffusion cells fitted with porcine ear skin and 10% aqueous methanol in the receptor compartment. Formulations studied, cream or hydroalcoholic dispersion, containing 0.25%, 1% and 5% of tretinoin were placed in the donor compartment for six hours. Tretinoin concentration in skin layers was measured by high performance liquid chromatography. The largest amount of tretinoin from both vehicles was detected in stratum corneum with significant differences among the three concentrations. The hydroalcoholic dispersion was the best vehicle. Significant amounts of tretinoin were found even in deep layers of epidermis. The formulation with 0.25% tretinoin showed better results when considered the amount of tretinoin on skin in terms of percentage. Finally, skin penetration of tretinoin was influenced by vehicle and concentration of this drug used in formulation.

Outcomes assessment of combination face lift and perioral phenol-croton oil peel

BACKGROUND

Face-lift surgery when combined with perioral phenol-croton oil peel is an underappreciated tool for face rejuvenation. The procedure results in significant central face skin tightening and wrinkle reduction.

METHODS

A retrospective review of 47 consecutive patients who underwent simultaneous face lift and perioral peel was performed. The objective measures used to evaluate the change in appearance of the patients included (1) a validated patient satisfaction questionnaire, (2) an evaluation of apparent age, and (3) an evaluation of perioral wrinkles by independent reviewers using a validated model. The assessment of apparent age was performed as follows: preoperative and postoperative photographs were shown randomly to six reviewers, who were asked to estimate the patient's age. The apparent age was compared with the patient's actual age, and the reduction in apparent age was calculated. Improvement in perioral rhytides was evaluated by using the Glogau classification system (range, 1 to 4).

RESULTS

Survey results documented overall patient satisfaction, which was rated as 6.5 on a scale of 1 to 7 (with higher scores indicating greater satisfaction). Patients' postoperative apparent age estimate was 8.2 years younger than their real age (p=0.0002). The Glogau classification system score demonstrated a mean reduction of 1.15 (3.3 preoperatively as compared with 2.15 postoperatively, p<0.0001).

CONCLUSION

Outcomes measurements, including patient satisfaction, objective evaluation of wrinkle improvement, and significant reduction in apparent age, document the power of this technique.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Therapeutic, IV.

Glycolic acid peel therapy - a current review

Chemical peels have been time-tested and are here to stay. Alpha-hydroxy peels are highly popular in the dermatologist’s arsenal of procedures. Glycolic acid peel is the most common alpha-hydroxy acid peel, also known as fruit peel. It is simple, inexpensive, and has no downtime. This review talks about various studies of glycolic acid peels for various indications, such as acne, acne scars, melasma, postinflammatory hyperpigmentation, photoaging, and seborrhea. Combination therapies and treatment procedure are also discussed. Careful review of medical history, examination of the skin, and pre-peel priming of skin are important before every peel. Proper patient selection, peel timing, and neutralization on-time will ensure good results, with no side effects. Depth of the glycolic acid peel depends on the concentration of the acid used, the number of coats applied, and the time for which it is applied. Hence, it can be used as a very superficial peel, or even a medium depth peel. It has been found to be very safe with Fitzpatrick skin types I–IV. All in all, it is a peel that is here to stay.

A study on fractional erbium glass laser therapy versus chemical peeling for the treatment of melasma in female patients

Introduction:

Melasma is a commonly acquired hypermelanosis and a common dermatologic skin disease that occurs on sun-exposed areas of face.

Aims:

To assess the efficacy and safety of non-ablative 1,550 nm Erbium glass fractional laser therapy and compare results with those obtained with chemical peeling.

Materials and Methods:

We selected 30 patients of melasma aged between 20 years and 50 years for the study. The patients were divided into two groups of 15 patients each. Group I patients were subjected to four sessions of 1,550 nm Erbium glass non-ablative fractional laser at 3 weeks interval. In group II patients, four sessions of chemical peeling with 70% glycolic acid was performed.

Results:

After 12 weeks of treatment, percentage reduction in Melasma Area and Severity Index (MASI) score was seen in 62.9% in the laser group and 58.7% in the peels group.

Conclusion:

It was observed that 1,550 nm fractional laser is as effective as 70% glycolic acid peel in reducing MASI score in patients with melasma.

[Side effects in aesthetic medicine. Spectrum, management and avoidance]

Aesthetic medicine has become increasingly popular in the last two decades. The same trend has occurred in dermatology. Aesthetic dermatology prefers minimally invasive procedures. Nevertheless, even these procedures are not free of possible adverse effects. The spectrum of possible adverse effects, their management and prevention are discussed for four popular procedures in aesthetic dermatology, i.e. chemical peels, mesotherapy, botulinum toxin, and dermal fillers. Aesthetic procedures should only be performed by well-educated, well-trained medical doctors with an excellent medical background, never by lay persons.

Comparative study of 15% TCA peel versus 35% glycolic acid peel for the treatment of melasma

BACKGROUND

Chemical peels are the mainstay of a cosmetic practitioner's armamentarium because they can be used to treat some skin disorders and can provide aesthetic benefit.

OBJECTIVES

To compare 15% TCA peel and 35% glycolic acid peel for the treatment of melasma.

MATERIAL AND METHODS

We selected 30 participants of melasma aged between 20 and 50 years from the dermatology outpatient department and treated equal numbers with 15% TCA and 35% glycolic acid.

RESULTS

Subjective response as graded by the patient showed good or very good response in 70% participants in the glycolic acid group and 64% in the TCA group.

CONCLUSIONS

There was statistically insignificant difference in the efficacy between the two groups for the treatment of melasma.

Complications of minimally invasive cosmetic procedures: prevention and management

Over the past decade, facial rejuvenation procedures to circumvent traditional surgery have become increasingly popular. Office-based, minimally invasive procedures can promote a youthful appearance with minimal downtime and low risk of complications. Injectable botulinum toxin (BoNT), soft-tissue fillers, and chemical peels are among the most popular non-invasive rejuvenation procedures, and each has unique applications for improving facial aesthetics. Despite the simplicity and reliability of office-based procedures, complications can occur even with an astute and experienced injector. The goal of any procedure is to perform it properly and safely; thus, early recognition of complications when they do occur is paramount in dictating prevention of long-term sequelae. The most common complications from BoNT and soft-tissue filler injection are bruising, erythema and pain. With chemical peels, it is not uncommon to have erythema, irritation and burning. Fortunately, these side effects are normally transient and have simple remedies. More serious complications include muscle paralysis from BoNT, granuloma formation from soft-tissue filler placement and scarring from chemical peels. Thankfully, these complications are rare and can be avoided with excellent procedure technique, knowledge of facial anatomy, proper patient selection, and appropriate pre- and post-skin care. This article reviews complications of office-based, minimally invasive procedures, with emphasis on prevention and management. Practitioners providing these treatments should be well versed in this subject matter in order to deliver the highest quality care.

Combination of microneedling and glycolic acid peels for the treatment of acne scars in dark skin

INTRODUCTION

  Acne scars can cause emotional and psychosocial disturbance to the patient. Various modalities have been used for the treatment of acne scars like punch excision, subcision, peels, microdermabrasion, unfractionated and fractioned lasers. The latest in the treatment armamentarium is microneedling. Acne scars commonly coexist with postinflammatory hyperpigmentation. A combination of microneedling and glycolic acid (GA) peels was found to give excellent results in the treatment of such scars. The aim was to study the efficacy of a combination of microneedling with glycolic peel for the treatment of acne scars in pigmented skin.

METHOD

  Thirty patients in the age group of 20-40 years with atrophic box type or rolling scars with postinflammatory hyperpigmentation were chosen for the study. Two groups were made. The first group comprised of 30 patients in whom only microneedling was performed once in 6 weeks for five sessions. In the second group of 30 patients, a combination of microneedling and 35% GA peels was carried out. Patients from both groups were evaluated on the basis of Echelle d'Evaluation clinique des Cicatrices d'acné classification.

RESULTS

  Based on the objective scoring and its statistical analysis, there was significant improvement in superficial and moderately deep scars (grade 1-3). There was also improvement in skin texture, reduction in postacne pigmentation in the second group.

CONCLUSION

  Microneedling is a simple, inexpensive office procedure with no downtime. It is safe in Indian skin (skin types III-IV). The combined sequential treatment with GA peel caused a significant improvement in the acne scars without increasing morbidity.

Hand rejuvenation: a review and our experience

BACKGROUND

The aged hand is characterized by cutaneous and dermal atrophy, with deep intermetacarpal spaces, prominent bones and tendons, and bulging reticular veins. Epidermal changes include solar lentigines, seborrheic keratoses, actinic keratoses, skin laxity, rhytides, tactile roughness, and telangiectasia.

STUDY DESIGN

A Medline search was performed on hand rejuvenation from 1989 to 2011, and results are summarized. Practical applications of these procedures are also discussed.

RESULTS

Reports of injectable hyaluronic acid, calcium hydroxylapatite, poly-L-lactic acid, autologous fat transfer, vein treatment, and chemical peels, along with lasers and light sources such as Q-switched laser, intense pulsed light, photodynamic therapy, nonablative resurfacing lasers, and ablative resurfacing lasers, in the rejuvenation of hands were found.

CONCLUSION

Review of the literature revealed options for minimally invasive treatment for rejuvenation of the skin and volume restoration of the dorsal hand. These treatments include injectables and fat transfer for volume restoration; sclerotherapy or vein ablation for dorsal hand vein treatment; and chemical peels, lasers, light, and energies for the treatment of epidermal and dermal changes.