antioxidant, anti-aging, normal to dry skin

Serum 20 AOX+


This product is currently sold out.

Size: 1 fl. oz

Who It's For

This will be too irritating for some.  Use the Replenix Cream CF or Power of Three antioxidants if you can't use or don't like the vitamin C antioxidants. Normal or oily skin and anyone looking for the antiaging properties of a good antioxidant.

Dr. Irwin's Product Review

Vitamin C 20%. Very high quality in that it uses L-ascorbic acid which penetrates cells well and has been proven to protect cells from UV damage to skin cell DNA, promote more even pigment, and help with fine lines.  Start with the Replenix Cream CF or the Replenix Power of Three though if you haven't used antioxidants before.

In Vitamin Cs the better quality products are serums or gels in a 10-20% concentration, contain L-ascorbic acid (not the Vitamin C esters), and are PH-ed to about 3.0. There are many expensive Vitamin Cs on the market that are not as good as this one here.  You should use this up in about 3-4 months.

How to Use

Use on cleansed skin in the morning under moisturizer and sunscreen.  It's fine to use these at night also if you are not using a retinoid then.  Using both at night is irritating for most people. 


Water, L-Ascorbic Acid, Ethoxydiglycol, Propylene Glycol, Glycerin, Zinc Sulfate, Phenoxyethanol, Ferulic Acid, Panthenol, Sodium Hyaluronate, Sodium Hydroxide

Dr. Brandith Irwin, MD

Ask me your skincare question!

Hi, I’m Dr. Irwin, and I believe that consumers need and deserve a medically trained and unbiased skincare advocate.

  • All our content is written and researched by myself and my trained staff.
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