However, according to Dr. Ariel Ostad, a cosmetic surgeon based in New York City, products that use a prescription-strength retinoid called adapalene are outliers in this pricey OTC mark-up.

“Adapalene only comes in one vehicle—a gel—while tretinoin comes in creams, lotions, and gels,” Dr. Castilla adds. “The ...

Adapalene 0.3%; alcohol-free. Biochemical and pharmacological profile studies have demonstrated that adapalene is a modulator of cellular differentiation, keratinization, and inflammatory ...

Adapalene 0.1%. Biochemical and pharmacological profile studies have demonstrated that adapalene is a modulator of cellular differentiation, keratinization, and inflammatory processes. However ...