Vitamin C skin care & The challenge
Vitamin C is often regarded as a wrinkle fighter or an anti-aging agent. The main objective of Vitamin C skin care, in scientific terms, is to increase the synthesis of collagen (a structural protein that is found in skin). The additional benefit of Vitamin C skin care is related to its capability of countering free radicals which cause damage to the skin.
Vitamin C skin care, however, faces a major challenge today. This is related to the oxidation tendency of Vitamin C skin care products. On coming in contact with any oxidising agent (e.g. air), the Vitamin C in the Vitamin C skin care products, gets oxidised; thus making the Vitamin C skin care product useless (in fact counter-effective). The oxidised Vitamin C imparts a yellowish-brown colour to the Vitamin C skin care product. This is something that you need to check before buying a Vitamin C skin care product. Even after you buy a Vitamin C skin care product, you need to store it properly and keep checking that itís still good to use (i.e. it hasnít attained a yellowish-brown texture).
The manufacturers of Vitamin C skin care products have tried to deal with this (oxidation) problem in multiple ways (and research on Vitamin C skin care products is on the top of their list). One such method of retaining effectiveness of Vitamin C skin care products for a long term is to keep a high concentration (say 10%) of Vitamin C. However, this makes the Vitamin C skin care products even more expensive. The Vitamin C skin care products are already somewhat expensive and making them even more expensive will throw the product manufacturers out of business. The other way is to use Vitamin C derivatives (like ascorbyl palmitate and magnesium ascorbyl phosphate). These are not only more stable but also inexpensive. Even though the derivatives based products are not as effective as the Vitamin C, their stability against oxidation is a very desirable feature that makes them very attractive. Moreover, these are known to be less irritating too.
Talking of effectiveness of Vitamin C skin care products, it's important to mention that not everyone responds to Vitamin C treatments. So its not a magic potion in any way. If you donít see a noticeable difference in your skin, it might be because of your skin not responding to Vitamin C treatment (and the Vitamin C skin care products might not be at fault, at all).
As more research goes on, one can only keep our fingers crossed and wait for a complete solution to the challenges faced by Vitamin C skin carí today.