Tretinoin is one of the most powerful anti-aging ingredients in skincare, known for its ability to stimulate collagen ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Tretinoin, also known as a prescription retinoid, is a dermatologist-loved ingredient that boosts ...

I'm a beauty editor, so the inside of a dermatologist's office is merely a second home for me. I've been going since I was 12, after attempting to quell my adolescent pimples with over-the-counter ...