Intense pulsed light induces synthesis of dermal extracellular proteins in vitro

Clinical efficacy of intense pulsed light combined with low-dose intralesional corticosteroids in treating noninfectious granulomas after mesotherapy: A case series analysis

BACKGROUND

Mesotherapy is a popular cosmetic procedure for localized delivery of substances. However, due to the lack of standardized processes, there are potential risks of adverse reactions. Granulomas formation is one of the chronic reactions which impose significant physical and mental burdens on patients.

OBJECTIVES

The aim of this analysis is to evaluate the safety and feasibility of combining intense pulsed light (IPL) with intralesional corticosteroids for treating noninfectious granulomas after mesotherapy.

METHODS

This retrospective observational case series included patients who suffer from noninfectious granulomas after mesotherapy and received combination of IPL and intralesional corticosteroids treatment between October 2021 and December 2022 at Peking University Shenzhen Hospital, Shenzhen, China. The process and effect were analyzed and summarized.

RESULTS

Among the seven patients, five expressed extreme satisfaction with the efficacy, while two was slightly satisfied. The physicians believed that all patients had shown significant improvement. No adverse reactions or recurrences were observed during follow-up.

CONCLUSION

Based on this analysis, the application of the combined treatment in patients suffering from noninfectious granuloma due to mesotherapy demonstrates good clinical efficacy and safety, making it worth considering as a treatment option.

Will repeated Intense Pulsed Light (IPL) treatment sessions affect facial skin sensitivity? Results of a twelve-Month, prospective, randomized split-face study

BACKGROUND

Despite the widespread use of intense pulsed light (IPL) technology in cosmetic dermatology, the effects of its repeated use on facial skin sensitivity in healthy individuals remains unknown.

METHODS

Seventeen healthy female volunteers were included in the study. We measured objective biophysical parameters of the skin, including transepidermal water loss (TEWL), skin glossiness, thickness and density of the epidermis and dermis, sensory nerve current perception threshold (CPT), and regional blood flow before and after treatment at different time points.

RESULTS

Sixteen volunteers completed a follow-up of 12 months. The treated side of the face showed a decreased TEWL on D1 and D3, which reverted to normal on D7. Epidermal thickness increased and skin glossiness decreased on the treated side on D1, but returned to normal on D3. We found no statistically significant differences in CPT values or in regional blood flow volume and velocity, with the exception of D1, which exhibited a higher regional blood flow volume on the treated side.

CONCLUSION

Repeated IPL treatments had no effects on facial skin barrier function, skin nerve sensitivity, or local microcirculation among healthy individuals. IPL is a safe skin care procedure that does not affect skin sensitivity.

Intense Pulsed Light Therapy Improves Acne-Induced Post-inflammatory Erythema and Hyperpigmentation: A Retrospective Study in Chinese Patients

Introduction

Post-inflammatory erythema (PIE) and post-inflammatory hyperpigmentation (PIH) are the most common acne-related sequelae with no effective treatments. By combining different cut-off filters, intense pulsed light (IPL) therapy can effectively treat these conditions with few side effects. While the safety and effectiveness of IPL for treating post-burn hyperpigmentation is well known, there is little evidence for its benefits for acne-related PIH. In this article, we evaluate the efficacy and safety of IPL for the treatment of acne-related PIE and PIH.

Methods

This retrospective study evaluated 60 patients with more than 6 months of PIE and PIH treated by the same IPL device and similar protocols. The treatment included three to seven sessions at 4–6-week intervals, and three cut-off filters (640 nm, 590 nm and 560 nm) were used sequentially in each session. Using the Global Aesthetic Improvement Scale (GAIS), Cardiff Acne Disability Index (CADI), and Erythema Assessment Scale (EAS), patients were evaluated on the basis of their facial photographs. The facial brown spots and red areas were visualised and analysed using the VISIA-CR system. Six months after the last treatment, the patients were assessed for acne relapse or any side effects.Please check and confirm that the authors and their respective affiliations have been correctly processed and amend if necessary.Checked and confirmed. No further corrections.

Results

On the basis of the GAIS, 49 of 60 patients (81.7%) showed complete or partial clearance of erythema and hyperpigmentation. The CADI and EAS scores showed significant improvement (p < 0.01) after IPL treatment compared with pre-treatment. A significant reduction (p < 0.01) in the facial brown spots and red areas was seen after IPL treatment. While no long-term side effects were reported, seven patients (11.7%) experienced acne relapse at follow-up.

Conclusion

IPL is an effective and safe treatment for acne-related PIE and PIH.

Medical and aesthetic improvement of photodamaged skin by the combination of intense pulsed light and photodynamic therapy with 10% aminolevulinic acid hydrochloride gel

OBJECTIVE

To evaluate the efficacy and safety of photodynamic therapy (PDT) with the novel 10% aminolevulinic acid (ALA) hydrochloride gel (10% ALA gel) and BF-RhodoLED® light (635 nm; 37 J/cm² ) in combination with intense pulsed light (IPL) to augment the medical and aesthetic improvement of photodamaged skin of the décolleté.

METHODS

This was a single-site prospective, randomized, intraindividual split chest pilot study with 20 female subjects with moderate to severe photodamage of the décolleté. Subjects were randomized to ALA-PDT + IPL to one split-side of the chest and ALA-PDT only to the contralateral side. Three blinded raters assessed aesthetic improvement using the global aesthetic improvement scale (GAIS).

RESULTS

Eighteen subjects completed the study. Superior GAIS results were achieved on the ALA-PDT + IPL treatment side than on the ALA-PDT only treatment side (p < 0.001) after 24 weeks of follow-up.

CONCLUSIONS

ALA-PDT using 10% ALA hydrochloride gel and BF-RhodoLED® light had superior rejuvenation effects on the décolleté when combined with IPL compared to ALA-PDT alone.

The Efficacy of IPL in Periorbital Skin Rejuvenation: An Open-Label Study

Introduction: Intense pulsed light (IPL) is one of the effective methods used to treat the signs of facial aging. However, its efficacy in improving the appearance of periorbital wrinkles has always been evaluated in the context of whole-face rejuvenation and not studied in its own right. Therefore, in this study, we sought to examine the effectiveness and side effects of IPL in periorbital skin rejuvenation. Methods: In this uncontrolled, open-label clinical trial, 38 patients referred to the Behrooz professional skin clinic for signs of periorbital skin aging were recruited. The patients underwent three treatment sessions with IPL at one-month intervals and were evaluated for treatment side effects after each session. Six months after the final IPL session, patients were examined to assess the level of symptom improvement. The patients were photographed at each treatment session and on the 6-month follow-up visit. Before and after treatment, the patient images were evaluated by two dermatologists unaffiliated with the study to determine the extent of improvement in the appearance of wrinkles and skin texture. Results: Six months' post-treatment, excellent improvement was observed in 3 patients (9.1%), considerable improvement in 7 patients (21.2%), moderate improvement in 9 patients (27.3%), mild improvement in 9 patients (27.3%), and finally little or no improvement in 5 patients (15.1%). A comparison of improvement scores based on the Fitzpatrick skin phenotype did not show significant differences (P=0.674). Four patients (12.1%) were dissatisfied with the treatment, whilst 17 patients (51.5%) reported moderate to considerable satisfaction with IPL rejuvenation. Conclusion: During facial rejuvenation, IPL can be used to improve periorbital skin aging.

Intense pulsed light (IPL) treatment for the skin in the eye area - clinical and cutometric analysis

OBJECTIVE

The aim of the research was to establish the influence of IPL treatment on skin ageing in the eye area.

MATERIAL AND METHODS

This study included 24 women, aged 38-63 years (mean age was 48.04) with Fitzpatrick skin type II and III who underwent five successive treatment sessions with an IPL in two-week intervals. The Cutometer (Courage + Khazaka electronic) reference test was an objective method for the assessment of the biomechanical properties of the skin. The measurements were made in three places around the eye. The photo documentation was used to compare state of skin before and after three months of treatments. Additionally, patients filled in a questionnaire, which contained questions concerning self-assessment of the procedure effects.

RESULTS

Cutometric analysis showed significant improvement of skin elasticity (statistical significance level is mostly < 0.0001). The comparison of clinical changes in the therapy, based on photo documentation, showed a 25% improvement.

CONCLUSIONS

This treatment was used in order to improve skin elasticity and decrease the amount and depth of wrinkles. It is a non-invasive treatment, with low risk of complications.