What is adult acne? "We're seeing more adult acne than we ever have," Dr. Portela revealed. "Hormones play a huge role in ...

What does azelaic acid do for your skin? Dermatologists explain the benefits of azelaic acid for acne, rosacea and melasma. Shop The Ordinary, Paula’s Choice and more.

NBC Select associate updates editor Zoe Malin says she started using Differin gel for her hormonal and cystic acne as a teenager since it is the only OTC retinoid that does not require a prescription.

Recognition: Susannah Nation, of Novato, is the new owner of Moonstone Skin & Body Care in Novato. After running Moonstone ...