What vitamin derivative is used in medications for skin wrinkling and acne. health in later years?

             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

This is a time line from 685 to 978

Nucleus is the organelle that contains chromosomes