Vitamin C Serum Continued
Many clinical trials have been undertaken to study the benefits of Vitamin C serum for the skin. One 2001 study found that applying Vitamin C serum to the skin before exposure to sunlight can actually provide a level of protection and reduce the oxidation of the skin. Another study in 2002 found that applying Vitamin C serum after sun exposure can decrease the overall effects and prevent further damage.
Vitamin C serum has also been shown to reduce the formation of melanin, the pigment found in skin. One symptom of sun damage is dark, blotchy spots on the skin, and using Vitamin C serum can reduce these spots and fade them over time. These spots, also known as “sun spots,” can add many years to appearance and can be frustratingly stubborn to fade with other treatments. However, Vitamin C serum has been shown to be effective in their treatment, as well as in the treatment of dark skin around the eyes.
The Problems of Vitamin C Serum
Vitamin C is an antioxidant, and as such is quite unstable. Unless in a dry form, Vitamin C will quickly oxidize after being exposed to air or light. It is estimated that up to 90% of the potency of Vitamin C has already been lost in the first month after a product has been opened. Using such a formulation will provide minimal benefits. Newer Vitamin C serums attempt to overcome this problem by mixing the Vitamin C with other substances that provide a protective role, keeping the serum active and potent for longer. It is also important for the serum to be quickly absorbed so that oxidation while on the surface of the skin is minimized.
By Kira Lee
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