Oat Straw Powdered Extract (10:1) is rich in silica and is used in skin care products as a skin softening agent. It reduces skin irritation and itchiness. When used in hair care products, Oat Straw Extract imparts softness and shine to the hair. Oat Straw Standardized Herbal Extract is water soluble and can be added to the water phase of your formulations. It may leave a slight residue at the bottom of your formulation if not removed through filtration.