Let’s start by discussing the Vitamin C compound itself. Vitamin C is a very popular ingredient in skin care products in general because it is a free-radical fighter and helps encourage the production of collagen naturally. In fact, young skin is full of the compound. It is the only anti oxidant that is known to encourage the synthesis of collagen.
Unfortunately, like so many other structures and compounds in our body, the levels of Vitamin C in our skin tend to decline as we age. When this happens, a few negative effects show up in the skin. Collagen production slows, for one. When this happens, the connective tissue that makes young skin taut and smooth degrades, resulting in wrinkles and sagging.
Another negative effect of declining Vitamin C levels is that your healthy cells are more susceptible to damage from free radicals. Free radicals are highly reactive compounds that will try to strip an electron from your healthy cells. When they are successful, cellular damage starts to occur that accelerates and leads to to premature aging. When your Vitamin C levels are sufficient, they can donate an electron to that free radical. This stabilizes the previously reactive compound, and helps stop some cellular damage that could have happened in its tracks.
Since Vitamin C is a compound that occurs naturally in our skin and bodies, choosing a Serum with 20% concentration of the vital compound is ideal. In fact, a Topical C can be approximately 20x more effective than a C taken orally. One must cross a critical threshold of in the Serum in order for it to be effective. A concentration that is too low will not do much good. A concentration higher than 20% may cause skin irritation. 20% is the ideal.
Other factors to look for in the Best Vitamin C Serum is an optimal carrier for the compound. Some examples include botanical Hyaluronic Acid and Organic Aloe. What these carriers do is allow for better and more optimal penetration of the C Compound exactly where it needs to be to effect change in the skin.