What percentage of vitamin c serum for skin?

VC Serum Ingredients: 20%

Most vitamin C products on the market range from 5% (considered fairly weak) to 20%. 20% is the highest amount you should put on your skin because if you go any higher, your skin will not be able to absorb as much of the antioxidant.

Neutriherbs Pure Vitamin c Serum:This incredible formula fades sun spots, discoloration and refinesskin texture. Rewards you mast beautiful skin.