Vitamin b5 has a moisturizing effect on the skin, but the effect is not obvious. If you want to improve dry skin, go to a regular medical and beauty institution to inject water light injection to improve. Water light injection belongs to an injection whitening skin care therapy, mainly using professional The water light gun injects the beauty injection into the dermis layer, which can speed up the metabolism of the skin, decompose the melanin under the skin, relieve dry and dark yellow skin, and brighten the skin tone.