Obagi Professional-C 20% Serum 30ml

Obagi Professional-C Serum 20% uses advanced scientific formulas developed and tested by leading Vitamin C experts. Obagi Professional-C 20% offers maximum daily antioxidant protection and greater penetration than other Vitamin C products. The greater the penetration, the greater the antioxidant benefit to your skin.
Vitamin C neutralizes free radicals to prevent skin cell damage. Professional strength Vitamin C can give your skin the superior protection it needs to:
Prevent premature signs of aging, including fine lines and wrinkles 
Protect against future damage 
Stimulate collagen production for firmer, more resilient skin 
Lighten and brighten skin for more even tone 
 
Obagi Professional-C Serum is available in three concentrations:
10% - Dry, sensitive or reactive skin
15% - All skin types
20% - Highest concentration of L-absorbic acid