Distinctive feature of the serums is that they consist of particles of a small molecule size, which facilitates their penetration into the skin.This explains their high efficiency and visible results. The most common serum components - are vitamins, antioxidants and acid. Serums are advised to use both young and adults. For each type of skin you can pick up its corresponding serum , but it must be remembered that in addition to serum you need to use other cosmetic products because it cannot replace all of them