Formulation of Urtica dioica L. Extract as a Sunscreen Lotion Preparation

Abstract

Indonesia, as a tropical country, has around 30,000 biodiversity species that have been identified. However, the tropical climate causes people to often face skin problems such as dullness, dark spots, and decreased elasticity that leads to degenerative behavior. Excessive exposure to UV light can accelerate this degenerative process resulting from an imbalance between ROS production. One of the plants that has the potential to be an antioxidant is wild nettle (Urtica dioica L) The purpose of this study is to determine the formulation that provides the best results based on the physical evaluation and SPF value of the sunscreen lotion preparation. The extraction method used is extraction with 70% ethanol solvent with a ratio of 1:10, samples were taken from Aikmel village, East Lombok District, flavonoid and tannin phytochemical screening, ethanol-free test, and physical evaluation and SPF ability of sunscreen lotion preparations. The results explained that all sunscreen lotion preparations were stable on physical evaluation for 28 days, and F3 had an SPF value of 39.74 which is included in the "Ultra" protection category. F3 formulation with an extract concentration of 4.5% ethanol extract Urtica dioica L., is considered the best formulation based on physical evaluation and sun protector activity.