VERB
润(肤);嫩(肤);使(皮肤)湿润
If you moisturize your skin, you rub cream into it to make it softer. If a cream moisturizes your skin, it makes it softer.
例句
...products to moisturise, protect and firm your skin...
润肤、护肤和紧肤产品
The lotion moisturizes while it cleanses.
这种乳液具有清洁和润肤的功效。