VITAMIN C or L-ASCORBIC ACID is essential to keep skin young and healthy. Humans cannot produce their own Vitamin C and topical application of it is the only way to get high levels in the skin. It helps build collagen, prevents free radical damage to skin, keeps skin healthy & young, decreases inflammation, lightens the skin and protects from sun damage. There are thousands of Vitamin C skin creams/serums in market and only some of them are good. Ascorbic acid is unstable and gets oxidized easily in creams/serums if Ph is high, warm temperature, if exposed to light or air, if there are traces of metals in formulation. So only reputable skin cosmeceutical companies or skin companies which spend money on skin aging research should be trusted and it means the product will be expensive. Vitamin C compounds available in market are L-Ascorbic Acid, magnesium ascorbyl phosphate, sodium ascorbyl phosphate, 6-palmitoyl ascorbate, ascorbyl tetraisopaamitate, ascorbyl 2 glucoside and 3-alkyl ascorbate. Look for L-Ascorbic Acid, ascorbyl glucosidase, tetrapalmitoyl ascorbate or 3-alkyl ascorbates
Consult your cosmetic surgeon or dermatologist before using any agent for aesthetic skin conditions. Treating skin for aesthetic purposes is a scientific process and not as simple as application of a chemical on the skin. I don’t have any financial interests in any skin products which I recommend!