Murad's product contains 2 percent hydroquinone—the highest dose of this melanin-inhibiting ingredient available over-the-counter. (Hydroquinone can irritate sensitive skin; start off using it once a day, then work up to twice a day.)
From topical solutions to major surgeries, here's exactly what we're talking about when we talk about retinoids, chemical peels, microdermabrasion, botox, and more.