Vitamin C Suspension 23% in HA Spheres uses direct vitamin C and hyaluronic acid to help visibly reduce signs of aging by brightening and balancing uneven skin tone. This water-free formula provides 23% pure L-Ascorbic Acid which remains completely stable due to the absence of water. What's more, this water-free formula is supported with spheres of hyaluronic acid for added hydration. Note: The slightly granular texture of this product is due to the vitamin C powder being suspended in an oil-like base and therefore each application requires a few seconds to feel absorbed by the skin. , , If desired, this formula can be diluted in a cream base per application to allow the skin to build tolerance over time." with "Ascorbyl Glucoside Solution 12% offers a lightweight, water-based formula that helps reduce signs of aging by brightening and balancing uneven skin tone. Unlike direct forms of vitamin C, this easy-to-use serum contains a water-soluble vitamin C derivative that converts into vitamin C once applied, giving it less irritation potential. , , And because it has advanced antioxidant properties, it also protects skin from the visual effects of damage caused by environmental stressors, helping to maintain a more radiant complexion. , Ingredients - Ascorbic Acid, Sodium Hyaluronate , Storage Instruction - Store at 18-23 degrees C