sun protection and waterproofing—organic silicone film-forming agent
use w/o system sunscreen, because most of the sunscreen is in the external oil phase, and the sunscreen ingredients can be spread continuously, while the oil-soluble sunscreen in the o/w system stays in the oil phase, and the sunscreen is easily dispersed and discontinuous after application, creating a “win” effect”, thus reducing the effectiveness of sun protection. therefore, it is necessary to use water-soluble sunscreen agents and add film-forming agents to enhance the waterproof and sunscreen effects of the formula.
