作者用无水基质制备了一种含有硅酮,乳酸甘油酯的屏蔽霜。硅酮系一种疏水剂,并能阻碍皮肤的蒸发作用,因而在角质层上面形成一层含水膜。在此之上加一层含硅油的疏水层。若此膜是完整的,则脂溶性变应原被硅膜挡住,且不能通过水层,而水溶性变应原则不能穿透外面的疏水层。要是变应 The authors used a water-free substrate to prepare a silicone-lactone-containing screen cream. Silicone is a hydrophobic agent that inhibits the evaporation of the skin and forms a water-based film on the stratum corneum. Add a layer of hydrophobic layer containing silicone oil on top of this. If the membrane is intact, the lipid-soluble allergen is blocked by the silicon membrane and can not pass through the water layer, whereas water-soluble allergens can not penetrate the outer hydrophobic layer. If it should be