Abstract
Objective: The goal of the project was to explore extracts from black tea leaves (Camellia sinensis Linnaeus) to prove it can give protection against ultraviolet rays (UV) in lotion preparation.Methods: Black tea extract was made in sunscreen lotion in oil in water (O/W) type emulsion using a combination of PEG-8 and beeswax as emulsifying agent 1, and combination of cetyl alcohol, ceteth-20, and steareth-20 as emulsifying agent 2. Evaluation of lotion including phytochemical screening of black tea leaf extract, measurement of sun protecting factor (SPF) value of extract black tea leaves, measurement of SPF preparation lotion sunscreen extract black tea leaves, physical observation of preparation, qualitative preparation evaluation using thin layer chromatography (TLC) and lotion security testing have been done to ensure the quality of lotions.Results: The result exhibited the effective SPF that was different to the sunscreen lotion F1, which contained 0.03% w/v and F2 which contain of 0.04% w/v black tea leaves extract with the point of SPF is 20.31 and 24.71 respectively. Both formulas fulfilled the requirements as lotion preparations and did not irritate the skin based on an irritation test on 20 volunteers.Conclusion: Formulas F1 and F2 can be applied as a sunscreen with good physical quality and is safe for topical use in lotion preparation.
Highlights
In recent years, the incidence of various diseases and disorders associated with solar ultraviolet radiation has increased, and it continues to grow [1]
The sun protecting factor (SPF) value measurement results from the extract of black tea leaves were used as a baseline of the extract concentration to be used in the formulation preparation of sunscreen lotion
It’s has shown the three extract concentrations, the SPF approaching SPF 15 was at 0.02% w/v concentration and 0.02% extract concentration of black tea is used as a benchmark of concentration in formulation the preparation sunscreen
Summary
The incidence of various diseases and disorders associated with solar ultraviolet radiation has increased, and it continues to grow [1]. Chronic exposure to mammalian skin by UV radiation causes a number of biological responses, including the development of erythema, edema, and formation of skin burn cells, immune suppression, DNA damage, photoaging, and melanogenesis. These changes are directly or indirectly involved in the development of skin cancer [1, 2]. Sunscreen is a cosmetic preparation that can be used to blend or absorb sunlight effectively. This sunscreen can prevent the occurrence of skin disorders due to solar radiation [5]. A lotion is a liquid preparation intended for external use on the skin and used as a protective, or for medication due to the nature of the ingredients, such as antioxidant preparation [4, 6, 7]
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