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Before understanding how vitamin C affects skin, it is important to understand the primary function of skin, your body’s largest organ. Fundamentally, your skin acts as a barrier against the external environment, protecting the body from assaults such as UV rays, ozone and pollution. It also helps regulate body temperature and locks in moisture, keeping the skin hydrated.
Recognised for its powerful antioxidant properties, vitamin C contributes to the body’s overall health by supporting immune system function, collagen production, and tissue repair.
However, humans do not have the ability to synthesise, or produce, their own vitamin C. It must therefore be acquired through diet or supplements. While oral supplementation is beneficial for overall health, its absorption rate is low, thereby resulting in low bioavailability in skin. As a result, topical applications of vitamin C can be effective.
Vitamin C is a highly-potent antioxidant that by its structure has difficultly being effectively absorbed by skin.
Outlines 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%. *The Duke antioxidant parameters
& SkinCeuticals is the only brand to formulate antioxidants according to these parameters.
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