In fact, it’s not even best known for its incredible anti-aging effects. Differin's 0.1% adapalene gel is a prescription-strength retinoid that you can get over the counter at the drugstore ...

Until 2016, Differin Gel required a prescription. Once that changed, Differin Gel became the first new acne-fighting active ingredient available over the counter in more than 30 years, and the ...