Bione Cosmetics Avena Sativa, 260 ml, Shampoos for Women, The Bione Cosmetics Avena Sativa shampoo cleans the scalp effectively, washes hair thoroughly, and restores its natural beauty. Characteristics: washes hair and cleans the scalp How to use: Apply an appropriate amount of shampoo to wet hair. Work up a lather and rinse thoroughly. Repeat if necessary.