Multifunctional photoprotection: corrective makeup for cutaneous dyschromias

• Autor(a) principal: Gonçalves, Felipe da Silva
• Data de Publicação: 2018
• Outros Autores: Giovanini, Iris Ramos Torres, Cerqueira, Cristal, Ricci Junior, Eduardo, Freitas, Zaida Maria Faria de, Santos, Elisabete Pereira dos
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Brazilian Journal of Pharmaceutical Sciences
• Texto Completo: https://www.revistas.usp.br/bjps/article/view/159276
• topic: Corrective makeup; Dyschromias; Sunscreens; Emulsions cosmetics

The aim of this study was to develop and evaluate a corrective and photoprotective makeup for patients with dyschromias. An emulsion was prepared and pigment mixtures were incorporated in the formulation, producing five shades of corrective makeup: BEIGE (I, II, III), BRONZE and TAN. The sun protection factor (SPF) and UVA/UVB ratio of the corrective makeup were determined using spectrophotometry with a Labsphere® analyser. The spreadability, occlusivity, stability, and photostability of the photoprotective formulations were also evaluated. For all formulations there was no statistical difference among them (p > 0.05) in terms of spreadability, occlusivity and SPF. They were considered to be photostable under solar radiation, with variations in SPF value and UVA/UVB ratio lower than 20%. The corrective makeup presented average-to-high UVB photoprotection and broad spectrum photoprotection. After 90 days, pH, density and SPF values showed no significant differences among formulations (p>0.05). All corrective makeup presented separation of the pigments, however, they returned to a homogeneous aspect and to the original color shade after shaking. The corrective makeup presented a fine texture, little brightness, and a homogeneous, dry-to-the-touch aspect. This work may benefit patients with dyschromias, improving their quality of life, besides promoting photoprotection and covering the skin blemishes.