Neminath Herbal Care 100% Natural Multani Mitti (Fullers Earth) Powder For Remove Sun Tan Naturally (100Grams) Multani mitti better known as the Fuller's earth is a clay substance that is hugely popular for its healing property against acne and blemishes. It is very rich in magnesium chloride which helps to reduce acne. You can use it as a cleanser toner and most importantly as multani mitti facial packs which are very popular. It is sweat resistant and can also be used to excess oil from skin.