Full size never used Highlights Brightens skin tone Reduces the look of fine lines and wrinkles Boosts serums and moisturizers COSMEDIX Pure C Vitamin C Mixing Crystals offer a boost of antioxidant power to create custom treatments. You can supercharge your skin care products and reveal a brighter-looking complexion with these mixing crystals made of 100% L-ascorbic acid. This dry mixing powder helps even the appearance of skin tone and texture, reduces the look of fine lines and helps improve the skin's elasticity and flexibility by helping to neutralize environmental stressors that commonly cause signs of aging. Key Features: Can be added to COSMEDIX serums and moisturizers to create custom treatments Gives your treatments a brightening boost Reduces the look of aging signs Featured Ingredient L-Ascorbic Acid A form of vitamin C that acts as a powerful antioxidant, improving the appearance of fine lines, wrinkles and dark spots.