Earth Rhythm Solid Conditioner Bar with Argan & Black Castor Oil is an all-natural hair conditioning bar. Conditioner bars are less wasteful. Unlike most liquid conditioners that are made with around 60 to 80% water, these do not contain water and are full of the ingredients you want. This conditioner bar is infused with the goodness of argan oil which is full of fatty acids, mainly oleic acid and linoleic acid. Argan oil is also rich in vitamin E, which provides a fatty layer to your hair and scalp that help prevents dryness and can help reduce frizziness and boost shine.