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- Title
Influência da adição de extrato de chá-verde sobre a estabilidade e efeito fotoprotetor de emulsões fps 15.
- Authors
Sponchiado, Rafaela Martins; Idamir Mascarenhas Junior; Barancelli, Mauricio; Haas, Sandra Elisa
- Abstract
The addition of plant material to a cosmetic may improve its characteristics. The stability profile allows the performance, safety, efficacy and consumer acceptance of an emulsion to be assessed. A stability study provides information about the behavior of the product over a given time interval, under various environmental conditions. The aims of this study were to prepare sunscreen formulations containing a glycolic extract of green tea (Camellia sinensis) and to assess the photoprotective activity in vitro, the organoleptic characteristics, pH and rheological behavior over a period of 30 days, during which the formulations were stored at temperatures of 25±2°C, 5 ± 2 °C and 40 ± 2 °C. After 15 days, changes in rheological characteristics were observed in the formulation stored at the higher temperatures. After 30 days, changes were observed at other temperatures. The addition of the extract significantly changed the rheological profile of the sunscreen formulations tested. An increase in the photoprotective effect was observed when the emulsion base was compared with the emulsion containing green tea extract. However, there was no evidence of an improvement of stability when the plant extract was added to the emulsions.
- Subjects
GREEN tea; THERAPEUTIC use of plant extracts; EMULSIONS; PRODUCT acceptance; SUNSCREENS (Cosmetics)
- Publication
Revista de Ciências Farmacêuticas Básica e Aplicada, 2013, Vol 34, Issue 4, p591
- ISSN
1808-4532
- Publication type
Article