Development of Sunscreen Products Which Have High SPF/PA Value and Water Resistance

Abstract

Due to the growing awareness of UV protection in recent years, many people have come to use sunscreens in various scenes. However, in leisure and sports scenes, sweat and water may wash them off and the expected UV protection effect may not be obtained. Therefore, in the development of sunscreen formulations, it is important not only to enhance the UV blocking effect, but also to have water resistance technology to maintain the effect. In this review, we will introduce the basic knowledge of UV protection materials and formulation development technology used in sunscreens, and the development of materials that achieve both high SPF/PA and water resistance.