Difference Between Skin-Care Powders and Serums?
Skin-Care Powders Are More Economical, but Are They Effective? An Expert Weighs In
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The Ordinary 100% Niacinamide Powder ($6) is as DIY as it gets. It's meant to be mixed into water-based products to help target specific skin issues like enlarged pores and excess oil, though it's up to you to customise how much of the product you actually want to use. Just be careful not to combine it with any of the ingredients the manufacturer doesn't recommend you mixing it with.