Vitamin C face serum from Ooz Natural: Face serum from Ooz Natural, restores the healthy glow to your skin as it works to treat skin pigmentation, stimulate the skin to produce more collagen, and improve its texture to make it more elastic and plump. It comes with a unique formula of vitamin C and E in addition to a blend of hyaluronic acid. An ideal choice for soft, fresh, and renewed skin. About the product: Contains a 20% concentration of vitamin C suitable for mature skin, except sensitive skin. Cleanse and prepare the skin. Then apply a thin layer of serum on the skin or targeted area. Let it dry. You can then apply moisturizer. For better results: apply twice a day.