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Serum 20 AOX+ is formulated with the precise concentration of 20% vitamin C that has been proven to provide maximum environmental protection and anti-aging benefits. This facial serum neutralizes free radical damage that contribute to atmospheric skin aging – environmental damage and premature signs of aging caused by free radicals from UVA/UVB. In addition to antioxidant benefits, this facial serum improves the appearance of fine lines and wrinkles.
- Neutralizes free radicals induced by environmental aggressors
- Reduces the appearance of fine lines and wrinkles
- Paraben-, fragrance-, alcohol-, and dye-free
- Ideal for normal, oily, and combination skin types
How To Use
In the morning after cleansing, apply 4-5 drops to a dry face, neck, and chest to promote healthy skin. Apply before other skincare products. May be used on the back of the hands. It is normal for vitamin C products to darken after opening due to air and light exposure. The formula will remain effective. Once opened, it is recommended to be used within 3 months of opening.
Complete your regimen with a SkinCeuticals sunscreen. When used together, SkinCeuticals antioxidants and broad spectrum sunscreens provide more comprehensive protection against visible aging caused by environmental aggressors.
This lightweight antioxidant serum combines 0.2% ferulic acid with a maximum 20% pure vitamin C (l-ascorbic acid) for enhanced antioxidant performance. It is formulated under the Duke Antioxidant patent. Vitamin C is a highly-potent antioxidant that by its structure has difficultly being effectively absorbed by on skin. The Duke Antioxidant patent describes the formulation parameters required for effective delivery of vitamin C to skin: 1) pure l-ascorbic acid (vitamin C); 2) an acidic pH within the 2.0-3.5 pH range and; 3) a concentration between 10%-20%. SkinCeuticals is the only brand to formulate antioxidants according to these parameters.
- 20% L-ascorbic acid
- 0.2% ferulic acid
Lauded for its superior antioxidant benefits, this highly potent form of pure vitamin C helps neutralize free radicals and protect against oxidative stress while providing visible anti-aging benefits.Learn more about L-ascorbic acid
See all ingredients
aqua / water / eau, ascorbic acid, ethoxydiglycol, propylene glycol, glycerin, zinc sulfate, phenoxyethanol, sodium hydroxide, panthenol, ferulic acid, sodium hyaluronate
This serum is loaded with great antioxidant benefits as it contains 20% L-ascorbic acid.
Dr. Joseph Terracina - The Skin InstituteLearn about Dr. Joseph Terracina
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Rated 5 out of 5 by Anonymous from This product is amazing with all the benefits I love this product. I have been using skin ceuticals for the past 12 years and my skin always looks amazing and I have prevented a lot of wrinkles with the use of these products. If I could literally bathe in these products I would.
Date published: 2011-10-27
Rated 5 out of 5 by Anonymous2 from Everyone should be using this I started using Skinceuticals Vitamin C 20% in my 30's, within weeks it corrected my crepey eyes caused by too much sun growing up. I'm in my 50's and my skin still looks like I'm in my 30's with no sun damage. This product should be an important part of everyone's skincare.
Date published: 2019-01-14
Rated 4 out of 5 by New Loyal customer from Left skin feeling smooth! I purchased this recently with my normal cleanser to compliment my sun protection regimen. It was not greasy and left my skin feeling smooth and soft. It will be my new buddy to sunscreen to prevent damage on daily basis!
Date published: 2019-04-20
Rated 5 out of 5 by Anonymous from Have been using 20% C for years I have been using 20% C for years and am now trying 20% C with Ferulic acid. I do not have any sun damage on face or chest.
Date published: 2011-07-27
Rated 5 out of 5 by Susan1977 from Amazing results I have been using this product for 3 months now and have had amazing results! Smooth, clearer skin in just a few months. One of those products I can not live without!
Date published: 2019-04-20
Rated 5 out of 5 by Larenas from Back to youth! Amazing product ... my skin looks beautiful I have the youth glow back, fine lines are gone, and all this magic after 10 days of using it
Date published: 2017-05-20
Rated 5 out of 5 by Magdalena from Really slowes dawn the aging process Keeps wrinkles away. Lasts a long time and does not irritate my sensitive skin.
Date published: 2018-12-07
Rated 5 out of 5 by Anonymous from Go To Anti-Anging Serum I have used this product for twenty years and could not imagine my skin without it!
Date published: 2016-04-22
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