Nestlé Skin Health’s Differin created “Retinoid Education Week” in early March; it was billed as a week-long mission to educate more than 50 million Americans with acne about how retinoids have revolutionized the way people treat their condition. Differin Gel contains adapalene, the only FDA-approved, acne-fighting retinoid available without a prescription and the latest ingredient in the OTC acne category in more than 30 years. “Retinoids, one of the most effective ingredients available to...