SUNSCREEN FORMULATION BASED ON CAMELLIA SINENSIS LEAF EXTRACTAbstract
Topical emulsions are widely used in dermo-cosmetology. Several topical formulations, such as sunscreen and anti-wrinkle creams, are prepared based on plant extracts for different dermatological affections. The main objective of this study was to formulate an emulsion-type sunscreen by incorporating tea leaf extract as an active ingredient. A spectrophotometric assay of the main phenolic groups and the screening of the antioxidant power using DPPH assay were carried out. Different O/W emulsions were prepared using tea leaf extract as an active ingredient, and their physical stability was assessed based on various physicochemical characteristics, including color, creaming, liquefaction, centrifugation, and pH. The results showed the potential of tea leaf extract and the possibility to be used as an active ingredient in new natural sunscreens due to its antioxidant activity. The tea leaf extract-based emulsion was stable and gave satisfactory results regarding the stability tests carried out during the preparation.
Mohammed Adil Selka *, Souheila Guendouz, Fethallah Ouahrani, Akram Yassine Mohammedi Mohammed Yacineachouri, Amel Chenafa and Nazim Bellifa
Pharmacy Department, Faculty of Medicine, Toximed Laboratory, University of Tlemcen, Algeria.
29 March 2023
27 May 2023
30 May 2023
31 May 2023