角质层

When we are in the bath and we have been there for a while the stratum corneum [outer] layer of our skin expands," says Evans. "This causes wrinkles and means our fingerprints will be enlarged also."───泡浴时，我们皮肤的角质层(外层)会有那么一刻时间扩张开来，”埃文斯说，“这导致我们的指纹出现皱纹或者扩张的情况。”

The permeability barrier is located in the outermost layer of the epidermis, the stratum corneum.───这层通透性屏障位于表皮的最外层-角质层。