C20 is a potent, waterless vitamin C serum designed for patients who want more from their antioxidant step. Its anhydrous formula helps optimize product stability while delivering 20% L-Ascorbic Acid in a high-performance system built to support brighter tone, stronger antioxidant defense, and a more youthful-looking complexion.
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I love the product and order it often. I notice a difference when it’s not part of my daily routine.
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Anonymous · February 17, 2026
Highly Satisfied Customer
Have used CE Ferulic for 3+ years along with AX5 and NutriMoist. Great products.