Redken Rough Clay 20 Redken Rough Clay 20 is suitable for all hair types & ideal for men & women with short to medium length hairstyles who want directional styles with enduring texture & separation. Redken’s Interbond Conditioning System uses kaolin clay to create instant texture & a matte surface effect. Directions Of Use: Rub a small amount in hands & emulsify. Apply onto dry hair in a messy manner. Reapply for stronger textural effects. Washes out easily with shampoo.