Beauty Products That Work While You Sleep (Seriously!)
When your to-do list is longer than your guest list, products that fit into an at-night beauty routine are a godsend. And it's not just about convenience—nighttime is the right time to treat skin and hair. "Your body is in repair mode, and skin-care ingredients like retinol, hyaluronic acid, and botanical anti-inflammatories work best when they're not exposed to UV rays and pollution," says New York City dermatologist Joshua Zeichner. The off-duty hours help your hair, too: Overnight these thicker, richer products penetrate deep into the cortex to strengthen and protect hair's pigment, says Eric Spengler, senior vice president of research and development at Living Proof.