My go-to product that contains this miracle ingredient is The Ordinary's Niacinamide 10% + Zinc 1% serum, which happens to cost just $6. What is niacinamide and how does it work? Niacinamide (also ...

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The best budget niacinamide serum The Ordinary Niacinamide 10% + Zinc 1% has an impressive high concentration of active ingredients for such an affordable serum. The Ordinary Niacinamide 10% ...