There's a reason you should use your salicylic acid treatment at night before you snooze that's when you'll get the best results, according to Day. "It's also important to moisturize your skin at night. Research shows that when we sleep our skin looses moisture from the epidermis." Day recommends a night treatment like Olay Regenerist Anti-Aging Moisturize Night Resurfacing Elixr and to keep a look out for ingredients like niacinamide, which helps improve the skin's moisture barrier, and glycerin, which helps skin retain more moisture.
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