100% Pure Protects Chapped Skin Condition: Skin in need of protection from wind burn and environmental factors. Solution: Pure Lanolin is a powerful, natural moisturizer that can promote the smoothness and translucency associated with healthy, youthful skin. Derived from the wool of sheep, lanolin is remarkably close to our own natural skin oils. Its thickness has been compared to petroleum jelly, but lanolin is a natural alternative that has more moisturizing properties and is similar to our own skin lipids. It is perfect for use on very dry, rough or chapped skin.