The Cellex-C Skin Hydration Complex is an oil-free, crystal clear gel that has been formulated to give you smoother, silkier and more radiant looking skin. This gel facilitates better absorption of vitamin C and keeps your skin oil-free. This product begins its moisturizing work beneath the surface of your skin. It is not intended for surface hydration, so you must use an additional moisturizer. The gel is also a perfect base for all types of make-up. This product is suitable for all skin types, even those with skin conditions. It is not recommended for extremely sensitive skin.