Obagi Professional C-Serum is scientifically formulated to deliver the benefits of vitamin C deep into the skin. This product has been demonstrated to penetrate twice as deep as other vitamin C products; the greater the penetration, the stronger the antioxidant benefit to the skin. The powerful anti-oxidant action of Obagi Professional- C serum neutralises free radicals before they can cause damage to the skin’s epidermal cells. It penetrates the epidermis and dermis, protecting skin cells and stimulating collagen production. Collagen in turn keeps the skin toned and firm, promoting a natural and youthful complexion.
Obagi vitamin C serum comes in 10%, 15% and 20% concentrations.

Side effects of Vitamin C serums

Side effects can include itching, redness and peeling for a few days and very occasionally mild chemical burns in sensitive skin types. Clients new to this  product are recommended to start  with a weaker concentration (5 - 10%).