You have heard how great Vitamin C is for your health. So why not bring some of this nutrient into your skin care routine? Obagi Professional-C Microdermabrasion Polish + Mask 2.8 oz contains 30 percent Vitamin C. In fact, it features L-Ascorbic acid, which is considered the best type of Vitamin C. When used daily, Vitamin C helps restore the antioxidant strength of your skin, making you appear younger. The nutrient additionally boosts the skin’s defenses against environmental stressors. Vitamin C also helps skin bounce back from prior damage.