Extrato de Anacardium occidentale L. em formulações cosméticas: benefícios para a pele oleosa
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Data
2017
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Edições Universitárias Lusófonas
Resumo
O caju (Annacardium occidentale L, família: Anacardiaceae.) é uma planta nativa da América tropical, e é
amplamente cultivada na Ásia e África. Tem grande importância socioeconômica para o Brasil e para diferentes
países. O extrato de caju (Anacardium occidentale L.) (CAE) é rico em taninos, flavonoides, aminoácidos, ácidos
anacárdicos e vitamina C que podem proporcionar benefícios para a pele oleosa. O objectivo deste estudo foi
avaliar a actividade antioxidante do CAE e a melhoradas condições da pele oleosa após aplicação de protetorsolar
contendo este extrato. A actividade antioxidante de CAE foi avaliada por ensaio de quimioluminescência. Um
protetor solar foi desenvolvido e adicionado (FC) ou não (F) com 3,5% de CAE. A perda transepidérmicade água,o
teor de água do estrato córneo, o conteúdo de sebo e o microrrelevo da pele foram avaliados antes e após 2 e 4
horas de uma única aplicação de F e FC; e após um período de 28 dias de aplicações duas vezes ao dia na face de
12 voluntárias. Técnicas de imagem cutânea foram utilizadas para avaliar poros e comedões. A análise sensorial
também foi realizada. O CAE mostrou actividade antioxidante. FC controlou a secreção de sebo após 2 e 4 horas,
reduziu o número de poros da pele (24%) e não aumentou o número de comedões. O CAE é um ingrediente ativo
inovador da biodiversidade brasileira com actividade antioxidante e eficácia para melhorar as condições da pele
oleosa
Cashew (Annacardium occidentale L, family: Anacardiaceae.) is a native plant from tropical America, and is widely cultivated in Asia and Africa. It has great socioeconomic importance for Brazil and for many other countries. Cashew apple (Anacardium occidentale L.,) extract (CAE) is rich in tannins, flavonoids, amino acids, anacardic acids and vitamin C, which can provide desirable benefits to oily skin. The aim of this study was to assess the antioxidant activity of CAE and the improvement of oily skin after application of a sunscreen containing this extract. The antioxidant activity of CAE was evaluated by chemioluminescence assay. A sunscreen was developed and added (FC), or not (F), with 3.5% of CAE. Transepidermal water loss, stratum corneum water content, sebum content and skin microrelief were evaluated before and after two and four hours of a single application of the F or FC formulations. FC effects on skin were also evaluated after a 28 day-period of twice daily applications on the faces of 12 volunteers. Skin imaging techniques were used to evaluate skin pores and comedones, and sensory analysis was performed. CAE showed antioxidant activity and the FC formulation controlled the sebum secretion after two and four hours. FC reduced the number of skin pores (24%) and did not increase the number of comedones. These results indicate that CAE is an innovative active ingredient from Brazilian biodiversity with antioxidant activity and efficacy to improve oily skin conditions.
Cashew (Annacardium occidentale L, family: Anacardiaceae.) is a native plant from tropical America, and is widely cultivated in Asia and Africa. It has great socioeconomic importance for Brazil and for many other countries. Cashew apple (Anacardium occidentale L.,) extract (CAE) is rich in tannins, flavonoids, amino acids, anacardic acids and vitamin C, which can provide desirable benefits to oily skin. The aim of this study was to assess the antioxidant activity of CAE and the improvement of oily skin after application of a sunscreen containing this extract. The antioxidant activity of CAE was evaluated by chemioluminescence assay. A sunscreen was developed and added (FC), or not (F), with 3.5% of CAE. Transepidermal water loss, stratum corneum water content, sebum content and skin microrelief were evaluated before and after two and four hours of a single application of the F or FC formulations. FC effects on skin were also evaluated after a 28 day-period of twice daily applications on the faces of 12 volunteers. Skin imaging techniques were used to evaluate skin pores and comedones, and sensory analysis was performed. CAE showed antioxidant activity and the FC formulation controlled the sebum secretion after two and four hours. FC reduced the number of skin pores (24%) and did not increase the number of comedones. These results indicate that CAE is an innovative active ingredient from Brazilian biodiversity with antioxidant activity and efficacy to improve oily skin conditions.
Descrição
Biomedical and biopharmaceutical research : jornal de investigação biomédica e biofarmacêutica
Palavras-chave
MEDICINA, CIÊNCIAS FARMACÊUTICAS, PRODUTOS COSMÉTICOS, PLANTAS MEDICINAIS, PROTETORES SOLARES, ANTIOXIDANTES, MEDICINE, PHARMACEUTICAL SCIENCES, COSMETICS, MEDICINAL PLANTS, SUNSCREENING AGENTS, ANTIOXIDANTS