Now that I’m firmly in my 30s, the relatively mild breakouts I faced as a teen have been replaced by deep, painful cystic ...

Tretinoin, also known as retinoic acid, is available in various concentrations, from 0.01 to 0.1 percent ... good reasons why tretinoin requires a prescription in the U.S. Though it’s annoying ...

Read on to learn all about tretinoin, its benefits and how to use it. Tretinoin is a derivative of vitamin A and is used in dermatology for various skin conditions. “It is a prescription ...