A Complete Collection of 100000 Whys
Fav十万个为什么
甘油为什么能润肤？
甘油能润肤，主要是由于其吸湿性、成膜性以及安全性，具体如下：
1、吸湿性：甘油具有很强的吸湿性，能够从环境中吸收水分，或者从皮肤深层吸收水分至角质层，保持皮肤的湿润。
2、成膜性：甘油分子可以与皮肤角质层中的蛋白质结合，形成一层保护膜，这层膜可以防止皮肤水分的蒸发，起到锁水的作用。
3、安全性：甘油是一种无色、无味、无毒的化学物质，对皮肤无刺激性，因此被广泛应用于护肤品中作为保湿剂。
总结：甘油能润肤，主要是由于其吸湿性、成膜性以及安全性。
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