Development and characterization of photoprotective formulations containing keratin particles



Título del documento: Development and characterization of photoprotective formulations containing keratin particles
Revista: Brazilian Journal of Pharmaceutical Sciences
Base de datos: PERIÓDICA
Número de sistema: 000450932
ISSN: 1984-8250
Autors: 1
1
1
2
1
1
Institucions: 1Universidade Federal do Rio de Janeiro, Faculdade de Farmacia, Rio de Janeiro. Brasil
2Universidade Federal do Rio de Janeiro, Instituto de Microbiologia "Paulo de Goes", Rio de Janeiro. Brasil
Any:
Volum: 55
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés This work deals with development and evaluation of MFQ protective formulation, which contains two organic filters, namely: octyl-p-methoxycinnamate (OMC) and benzophenone-3 (BP-3); a photostabilizing agent called ethylhexylmethoxycrylene (EHMCR) and keratin particles. The MFQ formulation was evaluated in order to measure its pH, spin-spin lattice relaxation time (T2H), occlusivity factor, formulation efficacy, photostability and skin permeation, as well as keratin particle properties. Keratin particle size increased when incorporated to formulation, however, it did not affect pH. The MFQ formulation was found to be photostable and photoprotective, as evidenced by sunlight photostability test, sun protection factor (SPF), UVA/UVB ratio and critical wavelength. Interaction between keratin particles and active substances (OMC, BP-3 and EHMCR) was evidenced by T2H measurements. Evidences suggest that keratin reduces the permeation of both UV filters employed along this study, therefore, it can be stated that keratin has a promising potential for use in sunscreen formulations
Disciplines Química,
Medicina
Paraules clau: Dermatología,
Química farmacéutica,
Protectores solares,
Queratina,
Octilmetoxicinamato,
Benzofenona,
Etilhexilmetoxicrileno
Keyword: Dermatology,
Medicinal chemistry,
Sunscreens,
Keratin,
Octylmethoxycinnamate,
Benzophenone,
Ethylhexylmethoxycrylene
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