Pure Hydration steam caps are designed to help hydrate the hair by lifting the cuticle in order to allow conditioners to penetrate the hair. It is great for low porosity hair. It helps improve elasticity, makes hair more manageable, reduce breakage, and makes blow drying easier. It also can be used for hot oil treatments and hair rinses. Be sure to use a plastic cap a plastic cap over the hair if you are going to use it for hair rinses.