Introducing Obagi Professional-C Serum - new formulations in Vitamin C to neutralize free radicals at all layers of the skin, before they damage skin cells and accelerate aging.
20% L-ascorbic acid is a maximum strength for all skin types except sensitive or rosacea-prone.
Up to 2 times greater penetration than
competitive C products.
Obagi Professional-C Serum offers:
Superior delivery system, resulting in greater penetration to all layers of the skin
Maximum daily antioxidant protection
Greater stability than competitive C products and Low side effect profile
Apply 5 to 7 drops of Obagi Professional-C Serum 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.
Water, Ascorbic Acid, Sodium Ascorbate, Sodium Lauryl Sulfate, Fragrance, Sorbitol, Zinc Chloride, Calcium Hydroxide, Sodium Hyaluronate, Phenoxyethanol, Sodium Bisulfite.
browse our organized listing of other popular ingredients





Teri Ann (7/21/2010)
I switched from NuDerm to the C Care for the summer and am delighted with results! I will go back to NuDerm in September.
Pros: Fabulous Product! Change is good for a few months, great especially when in sunshine a lot in Summer.
Cons: A little pricey but worth it!




Linda (4/21/2010)
I`m using the Obagi Vitamin C products, however, maybe I need to use the serum in a lesser strength--I`m using 20% serum and I can`t seem to stop peeling on my chin, below my nose and between my eyes. Do you have any recommendations??
Pros: I love the glow I'm getting--just don't like the rough skin in the areas I just mentioned above.
Cons: Constant peeling in areas I mentioned.





L. Greene (1/6/2010)
I absolutely LOVE the Obagi 20% C Serum. I was actually told by a PA who works for a very well respected dermatologist this was an excellent product to help with aging skin and fine lines. She was right... it is incredible, and I would highly recommend it.





Allan (4/27/2009)
this stuff is like liquid gold! if you use any one thing it is the greatest!!





Susan Heidarifar (2/21/2009)
I love OBAGI products, as they are especially fresh. This one came so very clear, one knows it is fresh (clarity is an indication of the freshness of VIT C in serums). I love it, and wouldn`t live without it!
Pros: It's freshness, it is very lightweight so it lasts a long time. Since it is 20%, one can use less. Make sure to put less in the dropper since it is so fresh, you don't want to lose it or have it drip out. Plus, keep it away from direct skin - that keeps it even fresher. When it starts to turn dark, it means the air, etc. has gotten to it, just as serums which you can't get over-the counter. Love it, and I think you would, too! (Great for fighting pigmentation problems! Gets rid of hormone induced brown areas and spots, especially with the other OBAGI products!)
Cons: Really, none. Except to be careful to fill up the dropper with just how much you need, or you may waste it, or lose it since it is so fresh it is lighter than water!




Eileen (1/28/2007)
I really like this product, having bought it instead of the usual Cellex-C advanced serum. My only issue is that it seems to somehow makes my face look shiny, not a good look for a middle-aged overweight woman. But I think I like it better than the Cellex-C in general. I do like Cellex-Cs texture better, though. Im going to have to do some serious deciding soon when Im about to run out.