Luckily, you don’t have to look too hard because we found a niacinamide serum shoppers say made their “dark spots disappear” and it’s $22 at Amazon! Packed with skincare heroes like ...

That's when I discovered one ingredient that could do it all: niacinamide. My go-to product that contains this miracle ingredient is The Ordinary's Niacinamide 10% + Zinc 1% serum, which happens ...