This Intense Skin Care Product Has Become a Pandemic Obsession

Why first-time tretinoin use is on the rise

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The first week he started tretinoin, Jordyn Alexander-Johnson ended up with a chemical burn. “I wasn’t using any moisturizer,” he says. Big mistake. Using tretinoin — a form of vitamin A that’s known for its effectiveness in treating acne and reducing signs of aging — is drying and…