A natural, plant-based pigment made from indigo and madder root that will color cold process soap a cool lavender shade. Just four simple ingredients: indigo, madder root extract, alum, and washing soda. Powder stick-blends into water or oil to produce an even color - no more speckles or rough spots. Use 3 grams of Indigo Purple per pound of soap in your recipe. A half-ounce jar will dye up to 5 pounds of soap. Caution: For use in cold process soap only. Not for use in food products or cosmetics. Always wear a mask when working with dry pigments. Cure and store soap out of direct sunlight to prevent fading. An all-natural pigment produced from madder roots and indigo. Use it for a steely lavender purple shade in cold process soap.