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Ramireddy AR, Behara DK. QbD Based Formulation Development and Optimisation of Ozenoxacin Topical Nano-Emulgel and Efficacy Evaluation Using Impetigo Mice Model. AAPS PharmSciTech 2024; 25:90. [PMID: 38649513 DOI: 10.1208/s12249-024-02805-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 04/09/2024] [Indexed: 04/25/2024] Open
Abstract
To formulate and optimize Ozenoxacin nano-emulsion using Quality by Design (QbD) concept by means of Box-Behnken Design (BBD) and converting it to a gel to form Ozenoxacin nano-emulgel followed by physico-chemical, in-vitro, ex-vivo and in-vivo evaluation. This study demonstrates the application of QbD methodology for the development and optimization of an effective topical nanoemulgel formulation for the treatment of Impetigo focusing on the selection of appropriate excipients, optimization of formulation and process variables, and characterization of critical quality attributes. BBD was used to study the effect of "% of oil, % of Smix and homogenization speed" on critical quality attributes "globule size and % entrapment efficiency" for the optimisation of Ozenoxacin Nano-emulsion. Ozenoxacin loaded nano-emulgel was characterized for "description, identification, pH, specific gravity, amplitude sweep, viscosity, assay, organic impurities, antimicrobial effectiveness testing, in-vitro release testing, ex-vivo permeation testing, skin retention and in-vivo anti-bacterial activity". In-vitro release and ex-vivo permeation, skin retention and in-vivo anti-bacterial activity were found to be significantly (p < 0.01) higher for the nano-emulgel formulation compared to the innovator formulation (OZANEX™). Antimicrobial effectiveness testing was performed and found that even at 70% label claim of benzoic acid is effective to inhibit microbial growth in the drug product. The systematic application of QbD principles facilitated the successful development and optimization of a Ozenoxacin Nano-Emulsion. Optimised Ozenoxacin Nano-Emulgel can be considered as an effective alternative and found to be stable at least for 6 months at 40 °C / 75% RH and 30 °C / 75% RH.
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Affiliation(s)
- Amarnath Reddy Ramireddy
- Department of Pharmaceutical Sciences, Jawaharlal Nehru Technological University Anantapur (JNTUA), Ananthapuramu, Andhra Pradesh, 515002, India.
| | - Dilip Kumar Behara
- Chemical Engineering, JNTUA College of Engineering (Autonomous), Jawaharlal Nehru Technological University Anantapur (JNTUA), Ananthapuramu, Andhra Pradesh, 515002, India
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Salimi A, Sharifmakhmalzadeh B, Amirabadi FS. Design and evaluation of adapalene microemulsion for transfollicular drug delivery through guinea pig skin. J Cosmet Dermatol 2024; 23:289-295. [PMID: 37462297 DOI: 10.1111/jocd.15933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 06/14/2023] [Accepted: 07/07/2023] [Indexed: 01/02/2024]
Abstract
INTRODUCTION Acne vulgaris can be treated topically with adapalene, a synthetic derivative of naphthoic acid with retinoid activity. Adapalene has a very low rate of percutaneous absorption and is almost completely insoluble in water. To obviate this problem, microemulsion (ME) carrier is used. The study's goals were to create and characterize adapalene-loaded ME and assess the drug's transfollicular route of penetration to see if hair follicles can serve as a conduit for the drug to enter the skin. METHODS Adapalene microemulsions (MEs) are made by combining the right amounts of the cosurfactant (propylene glycol), surfactant (Tween 80 and Span 20), and oil phase (oleic acid-Transcutol P (10:1)). Physical and chemical characteristics of MEs, including droplet size, stability, viscosity, drug release, and in vitro skin permeability via guinea pigs' hairy and non-hairy skin, were assessed. RESULTS The range of 13.86-56.16 nm was found to be the average droplet size of ME formulations. The range of viscosities was 117-240 cps. The drug release profile reveals that 95.374 percent of the drug was released within the experiment's first 24 h. Compared to the adapalene control (aqueous suspension), all MEs enhanced the adapalene flow through both hairy and non-hairy skin. The surfactant/cosurfactant ratio had an impact on the amount of drug that passed through both skins because a larger ratio enhanced the adapalene affinity in the follicular route. CONCLUSION Furthermore, the proportions of the water and oil phases in formulations, as well as the S/C ratio, have a significant impact on the physicochemical characteristics and adapalene permeability across both pathways.
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Affiliation(s)
- Anayatollah Salimi
- Nanotechnology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Pharmaceutics, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Behzad Sharifmakhmalzadeh
- Nanotechnology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Pharmaceutics, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Arpa MD, Seçen İM, Erim ÜC, Hoş A, Üstündağ Okur N. Azelaic acid loaded chitosan and HPMC based hydrogels for treatment of acne: formulation, characterization, in vitro- ex vivo evaluation. Pharm Dev Technol 2022; 27:268-281. [PMID: 35112652 DOI: 10.1080/10837450.2022.2038620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this study, hydrogels containing azelaic acid were developed using chitosan or HPMC (1-7%) for local treatment of acne vulgaris. Physicochemical properties such as viscosity, pH and mechanical properties were evaluated. In vitro release and ex vivo permeability studies were performed using Franz diffusion cell system. The pH of the hydrogels were highly compatible with the skin pH and varied between 4.38-5.84. The cumulative release percentages of the hydrogels at the end of 6 hours were 65-78%, whereas the marketed product yielded 50% drug release. According to the ex vivo permeability results, azelaic acid accumulated in the skin were found to be 9.38 ± 0.65% (marketed cream), 19.53 ± 1.06% (K3), 10.96 ± 1.91% (H6). The antiacne studies with Cutibacterium acnes revealed that K3 (29.45 ± 0.95) and H6 (32.35 ± 0.15) had higher inhibition zones compared to the marketed cream (24.50 ± 0.90). Additionally, the gels were found to be highly stable as a result of the stability studies for 6 months. Among the hydrogels that were prepared based on experimental findings, K3 (3% Chitosan) and H6 (6% HPMC) represented elevated in vitro release profile, higher permeability and increased antiacne activity. The findings of this research suggest that the developed hydrogels might be an alternative to the marketed product.
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Affiliation(s)
- Muhammet Davut Arpa
- Istanbul Medipol University, School of Pharmacy, Department of Pharmaceutical Technology, 34085, Istanbul, Turkey
| | - İkbal Merve Seçen
- Istanbul Medipol University, School of Pharmacy, Department of Pharmaceutical Technology, 34085, Istanbul, Turkey
| | - Ümit Can Erim
- Istanbul Medipol University, School of Pharmacy, Department of Analytical Chemistry, 34085, Istanbul, Turkey
| | - Ayşegül Hoş
- Istanbul Medipol University, School of Pharmacy, Department of Microbiology, 34085, Istanbul, Turkey
| | - Neslihan Üstündağ Okur
- University of Health Sciences, Faculty of Pharmacy, Department of Pharmaceutical Technology, 34668, Istanbul, Turkey
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Fully supercritical CO2 preparation of a nanostructured MOF composite with application in cutaneous drug delivery. J Supercrit Fluids 2021. [DOI: 10.1016/j.supflu.2021.105379] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Hydrogel composite containing azelaic acid and tea tree essential oil as a therapeutic strategy for Propionibacterium and testosterone-induced acne. Drug Deliv Transl Res 2021; 12:2501-2517. [PMID: 34782995 PMCID: PMC9458693 DOI: 10.1007/s13346-021-01092-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/03/2021] [Indexed: 12/03/2022]
Abstract
Azelaic acid (AzA) is a USFDA bioactive prescribed against acne vulgaris. It possesses delivery challenges like poor aqueous solubility, low skin-penetrability, and dose-dependent side effects, which could be overcome by its synergistic combination with tea tree oil (TTO) as a microemulsion (ME)-based hydrogel composite. AzA-TTO ME was prepared to employ pseudo-ternary phase diagram construction. The best AzA-TTO ME was of uniform size (polydispersity index < 0.7), nano-range (~357.4 ± 2% nm), transmittance (> 90%), and negative zeta potential (−1.42 ± 0.25% mV) values. ME hydrogel composite with optimum rheological and textural attributes showed better permeation, retention, and skin-compliant characteristics, vis-a-vis marketed formulation (Aziderm™) when evaluated in Wistar rat skin. In vitro antibacterial efficacy in bacterial strains, i.e., Staphylococcus aureus, Propionibacterium acne, and Staphylococcus epidermidis, was evaluated employing agar well plate diffusion and broth dilution assay. ME hydrogel has shown an increase in zone of inhibition by two folds and a decrease in minimum inhibitory concentration (MIC) by eightfold against P. acnes vis-a-vis AzA. Finally, ME hydrogel composite exhibited a better reduction in the papule density (93.75 ± 1.64%) in comparison to Aziderm™ 72.69 ± 4.67%) on acne as developed in rats by inducing testosterone. Thus, the developed AzA-TTO ME hydrogel composite promises an efficacious and comparatively safer drug delivery system for the topical therapy of acne vulgaris.
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Singh SK, Chaubey S, Bansal A, Kaur G, Malik DS. Cosmeceutical Aptitudes of Azelaic Acid. Curr Drug Res Rev 2021; 13:222-229. [PMID: 34042044 DOI: 10.2174/2589977513666210526122909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 02/08/2021] [Accepted: 03/17/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Azelaic acid (AZA) is a white crystalline dicarboxylic acid naturally found in grains, rye and barley. AZA has substantial biological and therapeutic abilities (viz a viz) its anti-inflammatory, anti-oxidant, anti-keratinizing, anti-microbial properties, etc. which contribute to its applicability in the management of mild to harsh dermatological complications (acne, rosacea, dermatitis, hyper-pigmentation, carcinomas, etc.). AZA has shown its effectiveness against varied non-inflammatory and inflammatory lesions by normalizing the hyper-keratinization statie and attenuating the increased levels of microbial content. Topically AZA, either alone or in conjunction with other active moieties, has proved to be effective in preventing acne and several other hyper-pigmentary conditions. OBJECTIVES Chronic applicability of AZA has been evidenced with the effects like itching, burning, stinging, redness, etc. To deal with the former issues, research is being conducted to substitute the conventional formulations with novel preparations (liposome's, niosomes, micro sponges, lipid nanocarriers, etc.), which could enhance the overall pharmaceutical and pharmacological profile of the drug. CONCLUSION This article is an attempt to highlight the basic physiochemical properties of AZA, its physiological role (especially in dermatology), various commercial preparations and recent novel approaches that are in research with an aim to augment the therapeutic and safety profile of AZA.
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Affiliation(s)
| | - Saumya Chaubey
- Chitkara College of Pharmacy, Chitkara, University, Punjab, India
| | - Anil Bansal
- Chitkara College of Pharmacy, Chitkara, University, Punjab, India
| | - Gurpreet Kaur
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, India
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Hung WH, Chen PK, Fang CW, Lin YC, Wu PC. Preparation and Evaluation of Azelaic Acid Topical Microemulsion Formulation: In Vitro and In Vivo Study. Pharmaceutics 2021; 13:pharmaceutics13030410. [PMID: 33808836 PMCID: PMC8003802 DOI: 10.3390/pharmaceutics13030410] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 03/12/2021] [Accepted: 03/17/2021] [Indexed: 12/05/2022] Open
Abstract
The aim of this study was to design oil in water (O/W) microemulsion formulations for the topical administration of azelaic acid. The permeability of azelaic acid through rat skin and the anti-inflammatory activities of the formulations were conducted to examine the efficacy of the designed formulations. Skin irritation and stability tests were also performed. The permeability of azelaic acid was significantly increased by using O/W microemulsions as carriers. The edema index of ear swelling percentage was significantly recovered by the 5% drug-loaded formulation and a 20% commercial product, demonstrating that the experimental formulation possessed comparable effect with the commercial product on the improvement of inflammation. The experimental formulation did not cause significant skin irritation compared to the negative control group. Moreover, the drug-loaded formulation also showed thermodynamic stability and chemical stability after storage for 30 days. In conclusion, the O/W microemulsion was a potential drug delivery carrier for azelaic acid topical application.
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Affiliation(s)
- Wan-Hsuan Hung
- Divison of Pharmacy, Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung City 81342, Taiwan; (W.-H.H.); (C.-W.F.)
| | - Ping-Kang Chen
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung City 80708, Taiwan;
| | - Chih-Wun Fang
- Divison of Pharmacy, Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung City 81342, Taiwan; (W.-H.H.); (C.-W.F.)
| | - Ying-Chi Lin
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung City 80708, Taiwan;
- Doctoral Degree Program in Toxicology, College of Pharmacy, Kaohsiung Medical University, Kaohsiung City 80708, Taiwan
- Correspondence: (Y.-C.L.); (P.-C.W.)
| | - Pao-Chu Wu
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung City 80708, Taiwan;
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung City 80708, Taiwan
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Correspondence: (Y.-C.L.); (P.-C.W.)
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Taherzade SD, Rojas S, Soleimannejad J, Horcajada P. Combined Cutaneous Therapy Using Biocompatible Metal-Organic Frameworks. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2296. [PMID: 33255580 PMCID: PMC7760737 DOI: 10.3390/nano10122296] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 12/18/2022]
Abstract
Combined therapies emerge as an interesting tool to overcome limitations of traditional pharmacological treatments (efficiency, side effects). Among other materials, metal-organic frameworks (MOFs) offer versatilities for the accommodation of multiple and complementary active pharmaceutical ingredients (APIs): accessible large porosity, availability of functionalization sites, and biocompatibility. Here, we propose topical patches based on water-stable and biosafe Fe carboxylate MOFs (MIL-100 and MIL-127), the biopolymer polyvinyl alcohol (PVA) and two co-encapsulated drugs used in skin disorders (azelaic acid (AzA) as antibiotic, and nicotinamide (Nic) as anti-inflammatory), in order to develop an advanced cutaneous combined therapy. Exceptional MOF drug contents were reached (total amount 77.4 and 48.1 wt.% for MIL-100 and MIL-127, respectively), while an almost complete release of both drugs was achieved after 24 h, adapted to cutaneous delivery. The prepared cutaneous PVA-MOF formulations are safe and maintain the high drug-loading capacity (total drug content of 38.8 and 24.2 wt.% for MIL-100 and MIL-127, respectively), while allowing a controlled delivery of their cargoes, permeating through the skin to the active target sites. The total amount of drug retained or diffused through the skin is within the range (Nic), or even better (AzA) than commercial formulations. The presented results make these drug combined formulations promising candidates for new cutaneous devices for skin treatment.
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Affiliation(s)
- Seyed Dariush Taherzade
- Advanced Porous Materials Unit (APMU), IMDEA Energy, Av. Ramón de la Sagra 3, 28935 Móstoles-Madrid, Spain; (S.D.T.); (S.R.)
- School of Chemistry, College of Science, University of Tehran, P.O. Box 14155-6455, Tehran 1417614411, Iran;
| | - Sara Rojas
- Advanced Porous Materials Unit (APMU), IMDEA Energy, Av. Ramón de la Sagra 3, 28935 Móstoles-Madrid, Spain; (S.D.T.); (S.R.)
| | - Janet Soleimannejad
- School of Chemistry, College of Science, University of Tehran, P.O. Box 14155-6455, Tehran 1417614411, Iran;
| | - Patricia Horcajada
- Advanced Porous Materials Unit (APMU), IMDEA Energy, Av. Ramón de la Sagra 3, 28935 Móstoles-Madrid, Spain; (S.D.T.); (S.R.)
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Abstract
Azelaic Acid (AA) is a naturally occurring 9-carbon straight-chain saturated dicarboxylic
acid widely found in wheat, rye, and barley. It has been shown to possess numerous biochemical
activities, such as anti-inflammatory, anti-microbial, antioxidant, anticomedolytic and anticancer.
This therapeutic agent has been approved by US food Drug Administration for the treatment of mild
to moderate acne and rosacea. Further, azelaic acid has been reported for the management of skin
hyperpigmentation, melasma and alopecia. In this review article, several studies on azelaic acid that
pointed out its bioactivities and pharmacology along with its drug delivery systems are reviewed.
Additionally, an outlook on its mechanism of action is also given. Azelaic acid is an important moiety
for the management of acne owing to its benefits in addressing follicular excess sebum, inflammatory
action, hyperproliferation and activity against Propionibacterium acne. The commercially
available topical formulations normally contain 15 to 20% AA. In the future, a broadspectrum antibacterial
agent, azelaic acid can act as a pillar in acne therapy minimizing the potential risk of
emergence of resistance. This review will definitely provide a new perspective for research involving
this bioactive molecule.
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Affiliation(s)
- Anil Kumar
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science & Technology, Hisar, 125001, India
| | - Rekha Rao
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science & Technology, Hisar, 125001, India
| | - Poonam Yadav
- Department of Pharmaceutical Sciences, Maharishi Dayanand University, Rohtak, 124001, India
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Salimi A, Sharif Makhmal Zadeh B, Godazgari S, Rahdar A. Development and Evaluation of Azelaic Acid-Loaded Microemulsion for Transfollicular Drug Delivery Through Guinea Pig Skin: A Mechanistic Study. Adv Pharm Bull 2020; 10:239-246. [PMID: 32373492 PMCID: PMC7191225 DOI: 10.34172/apb.2020.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 10/18/2019] [Accepted: 11/09/2019] [Indexed: 11/26/2022] Open
Abstract
Purpose: Azelaic acid is a natural keratolytic, comedolytic, and antibacterial drug that is used to treat acne. The topical application of azelaic acid is associated with problems such as irritation and low permeability. For dissolving, the problem is that microemulsion (ME) is used as a drug carrier. The aim of this study was to increase the azelaic acid affinity in the follicular pathway through ME.
Methods: Azelaic acid-loaded MEs were prepared by the water titration method. The properties of the MEs included formulation stability, particle size, drug release profile, thermal behavior of MEs, the diffusion coefficient of the MEs and skin permeability in the non-hairy ear skin and hairy abdominal skin of guinea pig were studied in situ.
Results: The MEs demonstrated a mean droplet size between 5 to 150 nm. In the higher ratios of surfactant/co-surfactant, a more extensive ME zone was found. All MEs increased the azelaic acid flux through both hairy and non-hairy skin compared with an aqueous solution of azelaic acid as a control. This effect of the ME was mainly dependent on the droplet diffusion coefficient and hydrodynamic radius. MEs with a higher diffusion coefficient demonstrated higher azelaic acid flux through hairy and non-hairy skin. Drug flux through both skins was affected by the surfactant/co-surfactant ratio in that the higher ratio increased the azelaic acid affinity into the follicular pathway.
Conclusion: Finally, the ME with the highest droplet diffusion coefficient and the lowest surfactant/co-surfactant ratio was the best ME for azelaic acid delivery into the follicular pathway.
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Affiliation(s)
- Anayatollah Salimi
- Nanotechnology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Pharmaceutics, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Behzad Sharif Makhmal Zadeh
- Nanotechnology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Pharmaceutics, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Salar Godazgari
- Department of Pharmaceutics, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Abbas Rahdar
- Department of Physics, University of Zabol, Zabol, Iran
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Abstract
The demand for halal cosmetic products among the 2.4 billion Muslim consumers worldwide is increasing. However, the demand for halal cosmetics remains unmet because cosmetics production is dominated by non-halal cosmetic manufacturers, whose production methods may not conform with the requirements of halal science. The development of halal cosmetics and the assessment of their product performance is still in its infancy. The integration of halal science in the manufacture of most cosmetic products remains inadequate. Moreover, there is a global dearth of guiding documents on the development and assessment techniques in the production of comprehensively halal cosmetics. This paper aims to abridge existing literature and knowledge of halal and cosmetic science in order to provide essential technical guidance in the manufacture of halal cosmetics. In addition, the adoption of these methods addresses the unique ethical issues associated with conformance of cosmetics’ product performance to religious practices and halal science. It highlights the applicability of established methods in skin science in the assessment of halal cosmetics.
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Tomić I, Juretić M, Jug M, Pepić I, Cetina Čižmek B, Filipović-Grčić J. Preparation of in situ hydrogels loaded with azelaic acid nanocrystals and their dermal application performance study. Int J Pharm 2019; 563:249-258. [DOI: 10.1016/j.ijpharm.2019.04.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 03/31/2019] [Accepted: 04/06/2019] [Indexed: 12/23/2022]
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Jacobus Berlitz S, De Villa D, Maschmann Inácio LA, Davies S, Zatta KC, Guterres SS, Külkamp-Guerreiro IC. Azelaic acid-loaded nanoemulsion with hyaluronic acid – a new strategy to treat hyperpigmentary skin disorders. Drug Dev Ind Pharm 2019; 45:642-650. [DOI: 10.1080/03639045.2019.1569032] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Simone Jacobus Berlitz
- Graduate Program in Pharmaceutical Sciences, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Damiê De Villa
- Department of Dermatology, Brazilian Society of Dermatology, Santa Clara Hospital, Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Brazil
| | | | - Samuel Davies
- Graduate Program in Pharmaceutical Sciences, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Kelly Cristine Zatta
- Graduate Program in Pharmaceutical Sciences, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Silvia Stanisçuaski Guterres
- Graduate Program in Pharmaceutical Sciences, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Irene Clemes Külkamp-Guerreiro
- Graduate Program in Pharmaceutical Sciences, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
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