Development of a cosmetic spray with photoprotective properties based on green tea

Sunburn is the result of the skin’s protective response to damage from ultraviolet (UV) rays. The melanin found in human skin absorbs ultraviolet light, helping to protect it, but some (light-skinned people) have less of it in their skin, which immediately increases the risk of sun damage. Excessive exposure to ultraviolet radiation adversely affects human skin. Active cohesion of basal cells and increased division of corneocytes thickens the stratum corneum of the epidermis, protecting underlying cells and basal keratinocytes from damage. The aim of the work is to search for and analyze natural components that have photoprotective properties that do not pose a danger to humans. One of these components are polyphenols, which form a natural photoprotective defense mechanism in plants. Green tea extract contains polyphenols capable of capturing ultraviolet radiation, therefore it is a promising environmentally friendly analogue of physical and chemical UV filters. Analysis of the developed liquid cosmetic spray based on green tea extract showed a high content of polyphenols, which may indicate the prospect of development in this direction.