Cosmedix Pure C™ Mixing Crystals are a potent, age-defying skincare booster designed to enhance your favorite Cosmedix serums and moisturizers. These pure L-Ascorbic Acid crystals, when mixed with your chosen product, deliver a powerful dose of Vitamin C to brighten the complexion, fight free radicals, and promote a more youthful appearance. Simply mix a small amount with your Cosmedix serum or moisturizer for an enhanced skincare ritual that targets dullness, uneven skin tone, and the visible signs of aging.