Vitamin C (ascorbic acid) serums
The role of vitamin C (specifically L- ascorbic acid) is to fight oxidizing free radicals or reactive oxygen species that lead to cellular damage, prematurely aging skin resulting in dark spots and wrinkles. Ascorbic acid is also a natural brightener which combats discoloration of skin that happens as we age and our skin accumulates sun damage. Topical vitamin C serums typically have ascorbic powder that is reconstituted or stabilized in a 10 to 25% strength formulation. Ascorbic acid is prone to oxidation in water preparations, which inactivates the antioxidant properties. Costs usually range from $50 to $100 for a reputable product with higher strengths typically more expensive. Having some cominbation products, such as SkinMedica’s TNS Essential Serum is a great product that combines vitamin C with other great anti-wrinkle and anti-aging ingredients. There is clinical evidence demonstrating this product’s efficacy, published the Journal of Drugs and Dermatology.2 The only potential downside is that the price for a month supply is nearly $300 for this product.
It is best to purchase vitamin C (L-ascorbic acid) containing products from an authorized retailer, such as a dermatology clinic, or directly from the vendor or through an authorized internet seller since poorly prepared or stored products may be oxidized and will not be effective, culminating in a financial loss. Visit Obagi.com and Skinmedica.com for more purchase information.
1. Xu, Tian-Hua, et al. Split-face study of topical 23.8% L-ascorbic acid serum in treating photo-aged skin. Journal of Drugs in Dermatology. January 2012: Volume 11, Issue 1. p 51-6.
2. Sundaram, Hema. Role of Physiologically Balanced Growth Factors in Skin Rejuvenation. Journal of Drugs in Dermatology. May 2009: Volume 8, Issue 5. p 3.