Multifunctional photoprotection: corrective makeup for cutaneous dyschromias

• Main Authors: Felipe da Silva Gonçalves, Iris Ramos Torres Giovanini, Cristal Cerqueira, Eduardo Ricci Junior, Zaida Maria Faria de Freitas, Elisabete Pereira dos Santos
• Format: Article
• Language: English
• Published: Universidade de São Paulo 2019-04-01
• Series: Brazilian Journal of Pharmaceutical Sciences
• Subjects: Corrective makeup; Dyschromias; Sunscreens; Emulsions cosmetics
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000400613&lng=en&tlng=en

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.