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C + AHA is a two-in-one daytime antioxidant serum that works by two different mechanisms to help improve the appearance of skin. Formulated with 15% pure vitamin C (l-ascorbic acid) and a blend of 10% hydroxy acids, neutralizes free radicals and exfoliates skin to promote clear skin and minimize the appearance of blemishes. In addition to providing the benefits of vitamin C, this daytime antioxidant serum reduces the appearance of fine lines and wrinkles as it improves overall skin radiance.
- Neutralizes damaging free radicals caused by environmental aggressors
- Exfoliates dry, dull surface cells to help improve the appearance of blemishes and skin texture
- Paraben-, fragrance-, alcohol-, and dye-free
- Ideal for normal, combination, and oily skin types
How To Use
In the morning after cleansing, apply 4-5 drops to a dry face, neck, and chest. May also be used on the backs of the hands. Finish with a SkinCeuticals broad spectrum sunscreen.
This daytime antioxidant serum blends the power of pure vitamin C (l-ascorbic acid) with a combination of 10% glycolic and lactic hydroxy acids at a pH that maintains their efficacy on skin. It is formulated under the Duke Antioxidant patent. Vitamin C is a highly-potent antioxidant that is, by its structure, difficult to effectively deliver 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.
- 15% L-ascorbic acid
- Glycolic and lactic acids
Lauded for its superior antioxidant benefits, this highly potent form of pure vitamin C helps neutralize free radicals and helps protects against oxidative stress while providing visible anti-aging benefits.Learn more about L-ascorbic acid
See all ingredients
aqua / water / eau, ascorbic acid, triethanolamine, glycolic acid, propylene glycol, glycerin, citric acid, lactic acid, phenoxyethanol, zinc sulfate, disodium edta, sodium hyaluronate
C+ AHA is a great combination product combining topical Vitamin C along with Glycolic Acid. It is great for anyone with signs of aging and prone to acne.
Dr. Jerome Potozkin – Potozkin MDLearn about Dr. Jerome Potozkin
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Rated 2 out of 5 by Courtcourt from Soy Sauce smell This product isn't anything special. I haven't noticed a change in my skin. Maybe it takes prolonged use? The product smells like soy sauce and turns dark brown with time. It leaves a brown sheer on my face and can stain clothing. I put sunscreen on top of the product to mask the brown/orange color of my face. I would try something else.
Date published: 2020-01-21
Rated 5 out of 5 by Anonymous from beautiful C+AHA is great for my combination skin - I use it at night and spot treat as needed in the mornings if i have any unruly pop-up blemishes. My hubby even asks for 'the special face potion' sometimes! It leaves my skin feeling SO soft looking bright and balanced in the mornings - a great part of my nightly ritual!
Date published: 2012-08-09
Rated 5 out of 5 by Anonymous from Glowing Skin! I definitely reccommend this product for anyone that has oily or acneic skin. I can say that since I started using this product (about 3 months ago) my skin is softer, smoother and has a healthy glow to it. I get compliments all the time on how great my skin is. I also use the Retinol 1.0 and when I apply the C+AHA the next morning there is some major tingling but it always passes quickly. I love this product and will continue to use it until they stop making it.
Date published: 2011-10-09
Rated 4 out of 5 by Anonymous from Excellent! I have lived in Texas for more than 30 years... Unfortunately, I have the sun damage to prove it. I also suffered from cystic acne as a teen. This product has done wonders for evening my skin tone and smoothing out the texture of my skin. This product is excellent for daily use. I place 2 drops on top of my hand in the morning and then apply to my face...now hands and face benefit!
Date published: 2011-08-14
Rated 5 out of 5 by Anonymous from Helps with acne and skin tone I have tried a couple of antioxidant serums and I like this one best for my oily, acne prone, aging skin. Doesn't make me break out. Seems to help with preventing breakouts. I actually ran out and had a few weeks of not using and my skin started to break out which is how I'm determining this.
Date published: 2011-07-18
Rated 3 out of 5 by Anonymous from Orange alert I purchased this product on the recommendation of a day spa I went to for a facial. I wasn't able to clearly determine any positive results from using it, which was disappointing given the price point, but I'll acknowledge that i haven't seen discernible results from any of the various products I've used over the years so I'm not discounting that it may have been helpful. However, I feel that before buying this product you should be warned that it darkens it color as it ages. I probably didn't use my quickly enough because by the end of the bottle, it was leaving an orange tint on my face and also stained the neckline of my bathrobe.
Date published: 2011-02-13
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