Argan oil is high in Vitamin E which reduces the appearance of fine lines and wrinkles and keeps skin soft and smooth. Vitamin E is also beneficial in fading stretch marks and scarring. I have not personally heard of anyone using argan oil for treatment of melasma, a skin condition (often hormonal) that causes dark discoloration of the skin. Dermatologists report melasma can be caused by certain birth control pills, hormone replacement therapy and/or being pregnant (chloasma). Chloasma may disappear after giving birth. Talking with your doctor about switching birth control or other medications may be beneficial in treating melasma. Proper sun protection is very important in decreasing the severity of any skin discoloration.