Sunscreen compositions, products and methods that include at least one UVA sunscreen active agent, at least one UVB sunscreen active agent, and one or more water insoluble film forming polymers. The compositions, products and methods may further include one or more active or inactive cosmetic ingredients. The water insoluble film forming polymers synergistically affect the UVA and UVB sunscreen active agents, in particularly the UVA sunscreen active agents by significantly enhancing the water resistance of the UVA sunscreen active agents after water exposure as determined by the SPF and UVAPF values measured before and after water exposure.
包括至少一种 UVA 防晒活性剂、至少一种 UVB 防晒活性剂和一种或多种
水不溶性成膜聚合物的防晒组合物、产品和方法。这些组合物、产品和方法还可进一步包括一种或多种活性或非活性化妆品成分。
水不溶性成膜聚合物可协同作用于 UVA 和 UVB 防晒活性剂,尤其是 UVA 防晒活性剂,可显著增强 UVA 防晒活性剂在
水暴露后的耐
水性,这是由
水暴露前后测得的
SPF 值和 U
VAPF 值决定的。