Visible signs of aging skin, those fine lines and wrinkles, are caused by tiny molecules known as "free radicals". Free radicals are produced during normal skin functions, but dramatically multiply with exposure to sun, air pollution and other environmental assaults. Vitamin C neutralized free radicals to prevent skin cell damage upon absorption by the skin. 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.
• Moisturize and increase skin hydration, for more soft, supple and smooth-texture skin.

What sets Professional-C Serum apart from other Vitamin C Serum?

Deeper Penetration: Obagi Professional-C Serums deliver greater penetration to the epidermis and dermis. The greater the penetration the greater the antioxidant benefit. Greater Stability: Obagi Professional-C Serums are proven to remain stable for longer periods of time than leading Vitamin C treatments, which can break down and lose potency more quickly. Fast Acting: Obagi Professional-C Serums are absorbed into your skin quickly, so your skin benefits right away. Because they’re rapidly absorbed, Obagi Professional-C Serums won’t rub or wash off.

PRODUCT AND APPLICATION		AM	PM
	Professional-C 20% Serum
	Skin Type: For maximum potency with the highest concentration of L-Ascorbic Acid. For less fragile or less sensitive skin. Can be used once or twice daily. Apply 5 to 7 drops to the face, neck and chest using fingertips. Apply to cleansed skin in the morning before sunscreen and makeup application. A slight tingling may occur in some people, which diminishes with continued use.
	Professional-C 15% Serum
	Skin Type: For all skin types. Can be used once or twice daily. Apply 5 to 7 drops to the face, neck and chest using fingertips. Apply to cleansed skin in the morning before sunscreen and makeup application. A slight tingling may occur in some people, which diminishes with continued use.
	Professional-C 10% Serum
	Skin Type: For dry, sensitive or reactive skin. Can be used once or twice daily. Apply 5 to 7 drops to the face, neck and chest using fingertips. Apply to cleansed skin in the morning before sunscreen and makeup application. A slight tingling may occur in some people, which diminishes with continued use.
	Professional-C 5% Serum
	Skin Type: Protection for the sensitive eye area. Can be used once or twice daily. Apply 3 to 5 drops to the eye area, gently massaging with fingertips. Apply to cleansed skin in the morning before sunscreen and makeup application. A slight tingling may occur in some people, which diminishes with continued use.