Retinol: What It Does and How to Use It in Your Skin-Care Routine

Also known as tretinoin, retinoic acid is the most bioavailable retinoid. In other words, “Retinoic acid doesn’t need to go through any conversions, so it is readily available and faster-acting” than other retinoids, according to Sheila Farhang, MD, board-certified dermatologist and founder of Avant Dermatology & Aesthetics. And because of that, Dr. Chang says, it’s … Read more