Aztec Secret- Moroccan Rhassoul Clay (400gm) GREAT FOR SKIN! Can increase skin elasticity, even skin tone, reduce blemishes and blackheads, and reduce skin dryness or flakiness. GREAT FOR HAIR! Can be used in your hair shampoo to help nourish, clean and strengthen your hair. NUTRIENT RICH! Rhassoul natural clay is rich in magnesium, silica, potassium, and calcium, which all help to nourish your skin.