Formulation and Evaluation of Herbal Sunscreen Stick from Pyrostegia venusta (Ker Gawl.) Miers leaf ethanolic extract: A Modern Approach for Plants as Photo protectants

Abstract

Plants are considered as one of the most important sources of medicines. Plants are also used in the preparation of cosmetics. Sunscreens are more prevalent for the protection of the human skin from harmful UV rays of the sun. Medicinal plant can be used in the preparation of effective sunscreens which are helpful for the protection of our skin as they do not have any side effects and can be used for any skin type. Sunscreen in the stick form is currently gaining notice due to its capacity to only cover a very limited surface area with each application. It has excellent water resistance capability, is simple to use, and creates a cohesive, durable protective film. This study is based on studying the SPF of Pyrostegia venusta plant and to develop a formulation for photoprotection. The physical characteristics of the leaf were studied. Extraction of the leaf was performed. The phytochemical analysis of the ethanolic extract was carried out to check the phytoconstituents. From this ethanolic extract the SPF was studied by In¬ vitro method from Mansur equation. A formulation was developed from the extract which was a sunscreen stick. The results showed presence of alkaloids, tannins, and flavonoids in the ethanolic extract. The SPF of the leaf was reported to be 10.84075 ± 0.02. The sunscreen stick formulation also showed satisfactory photoprotective activity. The study's findings lead us to the conclusion that the formulation could shield our skin from the damaging ultraviolet radiation and protect various skin diseases.