Factopus

6 of 8

LESSON 3 · Skin Science

PAUSE TO THINK

Which retinoid was the first to be sold over the counter at prescription strength?

Adapalene (Differin)

For years, prescription-strength retinoids required a doctor's visit. Adapalene changed that when it became the first one approved for over-the-counter sale, making a clinically proven retinoid far easier for most people to try.

←Back Next Page →