In Your 30s
Vitamin A derivatives, like Renova, don't just work to erase wrinkles. They help clear up acne, too (it all comes down to exfoliation in the end). "For women in their 20s and 30s, I prescribe Retin A or Tazorac to treat regular breakouts," explains Friedman. "Unless she's trying to conceive, or is pregnant. In that case these medications are not recommended."