Dr. Rishi Chopra is a board-certified dermatologist at Union Derm in New York City. He is known for his work with lasers, ...

Medically reviewed by Katlein Franca, MD Acne is a common skin condition that affects 80% of people between 11-30 years old ...

A Practical Guide to Getting Your Hands on Tretinoin—the Fastest-Acting, Strongest Form of Retinol ...