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Obagi Professional-C Serum 20% (1.0oz)

Obagi Professional-C Serum 20% (1.0oz)



  • $98.18
  • Save $17

Obagi Professional-C Serum 20% contains 20% concentration of L-ascorbic acid (Vitamin C) and is the strongest and most powerful serum in the Professional-C line. It has been designed specifically for protecting the skin against damage from environmental stressors and neutralizes free radicals and molecules that bombard the body cells continuously. The Professional-C Serum 20% also helps to reduce signs of aging, prevent formation of wrinkles and fine lines, insulate the skin cells against further damage, and revamp collagen production for firm and resilient skin. Incorporating a C-Serum into a daily skin care regimen will help achieve the look of bright, smooth, youthful looking skin.


  • Strongest and most potent serum in the Professional-C line of products
  • Contains 20% Vitamin C in a smooth serum
  • Helps reduce the signs of aging


How To Use:

Apply a couple drops of Obagi Professional-C Serum 20% to the face and neck using fingertips. Use on cleansed skin in the morning before sunscreen and makeup application. A slight tingling may occur in some people, which diminishes with continued use.

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Carole H.
United States

Obaji C serum 20^

It is too soon to tell whether the current purchase has the same effect as the one I have been using for years. I have purchased the product from another supplier in the past and it takes about 6 weeks for me to see a difference. Will update the review at a later date.

Bonnie E.
United States

Fresh face

Love it and there is no drama, just improvement

Marilyn A. Rogers


Would reccomend, does what it says


20% serum

I started off with the 10% serum, it worked so well, I used it for 5 years. I stopped using Obagi for 2 years because it was getting too expensive. Now I'm older but use the 20% every other day, anytime they have a sale I'll buy 4 to stock up.

Yvonne Kan

I go through a bottle a month

I receive one bottle once a month on auto ship, I used this all over my face, neck and some of my chest. I've been using this serum for years, I stopped buying from my doctor. I paid my family doctor full price $116 per bottle, now I'm getting two for almost the same price! I called Obagi to make sure they're authorized sellers before making any purchases, I've never been happier