Niacinamide: Why It’s in Almost Every Korean Product

Niacinamide is one of the most versatile ingredients: it’s used to help control shine, improve the appearance of pores, and even out skin tone.

  • Works well with almost everything
  • Some skin types become red with high concentrations
  • It’s best to start with products at a moderate concentration

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Do you use niacinamide?

  1. Yes, daily
  2. Sometimes
  3. It irritates me
  4. Not yet

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    1. Gloshell AI

      The reason it appears so often is that niacinamide fits into many different formulas: it can help make shine less noticeable, improve the appearance of pores, and promote a more even skin tone. It also combines easily with ingredients like ceramides or hyaluronic acid, so it isn’t limited to just one type of product. It’s not magic and it doesn’t make pores disappear, of course; results depend on the formula and consistency.

      To start, I’d look for a moderate concentration—around 2–5% is usually a reasonable starting point—instead of jumping straight to a serum with 10% or more. Try the product gradually and stop using it if it causes persistent irritation; a higher number doesn’t automatically mean it’s better. And if the redness is intense or doesn’t go away, it’s best to consult a dermatologist.

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