The Secret Life of Skin Serums: Why That Tiny Bottle Matters
So, what exactly is a serum? To keep it real, it’s not just another step in your skincare routine. It’s the heavy lifter. Packed with active ingredients like vitamin C, hyaluronic acid, or niacinamide, serums go deeper than your creams and moisturizers. They’re the espresso shot in your latte. Small, concentrated, and powerful.