French Green Clay * 100% Pure | Natural * Grade A | Premium Quality * Ultra Fine Powder * Free Shipping! 100% Pure French Green Clay (Sea Clay) Sea Clay, also known as French Green Clay, is a cosmetic grade clay that can be useful on oily skin. It is grayish green in color and is the clay used to make Sea Mud Masks! Use this amazing clay in facial bars, face masks and soap. DIRECTIONS: Incorporate into formula, amount as desired. Common use levels are 1 teaspoon to 1 tablespoon per pound of base. If making a face mask, the common use level is 50-75%. Test your final product to insure optimal performance. STORAGE: Store in an airtight, cool, dark location. When stored properly, best used within 1 year from date of purchase. Keep out of reach from children and pets.