Answer:
Vitamin C is one of the most important ingredient of skin as it play a key role in synthesis of collagen necessary for elasticity of skin.
Derivatives of vitamin C:
Following are derivatives of vitamin C used in medication for skin wrinkling and achne:
1. Ascorbyl-6-palmitate
2. Magnesium ascorbyl phosphate
Derivatives of vitamin A:
There are four derivatives of vitamin A use in treating skin wrinkling, these are:
1.Retinol
2. Retinyl Palmitate
3. Retinaldehyde
3. Retinyl Retinoate