Pure C PowderStable 100% pure topical Vitamin C dissolves into any Biophora cream or gel. Improves the look of dull, aky, sun damaged skin with lightening, antioxidant, and rming properties. Suitable Skin Types: All Skin Types. Key Ingredients: 100% pure topical Vitamin C (ascorbic acid) How to Use: For optimum results, this is mixed with BIOPHORA skin care products. The product comes with a tiny pharmaceutical measuring spoon. Mix 1 part pure C powder to 4 parts