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  • Mary&May Vegan Lemon Niacinamide Glow Wash off Pack 125gMary&May Vegan Lemon Niacinamide Glow Wash off Pack 125g – product photo 2
    Mary & May
    Mary&May Vegan Lemon Niacinamide Glow Wash off Pack 125g
    Brightening Clay Mask for Radiant Skin Mary and May Vegan Lemon Niacinamide Glow Wash-Off Pack Lemon Peel PowderNiacinamide3-O-Ethyl Ascorbic AcidKaolin + Bentonite + IlliteVegan Certified 125 g / 4.41 ozMade in South Korea Mary and May Vegan Lemon Niacinamide Glow Wash-Off Pack - Brightening...
    $26.49
    $52.98
    $26.49
    (-50%)
  • Mary&May Niacinamide + Chaenomeles Sinensis Serum 30mlMary&May Niacinamide + Chaenomeles Sinensis Serum 30ml – product photo 2
    Mary & May
    Mary&May Niacinamide + Chaenomeles Sinensis Serum 30ml
    Brightening Pore-Refining Daily Serum Mary and May Niacinamide Chaenomeles Sinensis Serum Chaenomeles Sinensis 93%Niacinamide 2%Antioxidant Vitamin CFast-Absorbing FormulaEWG Green Grade 30 ml / 1.01 fl ozMade in South Korea Mary and May Niacinamide Chaenomeles Sinensis Serum - Brightening Serum A lightweight brightening treatment built...
    $18.99
    $37.98
    $18.99
    (-50%)
  • Mary & May Niacinamide + Vitamin C Brightening Mask Pack (30 Sheets)Mary & May Niacinamide + Vitamin C Brightening Mask Pack (30 Sheets) – product photo 2
    Mary & May
    Mary & May Niacinamide + Vitamin C Brightening Mask Pack (30 Sheets)
    Radiance Boosting Brightening Sheet Mask 30 Pack Mary and May Niacinamide Vitamin C Brightening Mask Pack Niacinamide 2%Vitamin C SAP 1,000 ppmHyaluronic AcidEWG Green GradeVegan Certified 30 SheetsMade in South Korea Mary and May Niacinamide Vitamin C Brightening Mask Pack - Radiance Mask A...
    $23.99
    $47.98
    $23.99
    (-50%)
  • Centellian24 Madeca Toning Essence Treatment 300ml, Brightening Niacinamide Centella TonerCentellian24 Madeca Toning Essence Treatment 300ml, Brightening Niacinamide Centella Toner – product photo 2
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    Centellian24
    Centellian24 Madeca Toning Essence Treatment 300ml, Brightening Niacinamide Centella Toner
    Brightening Niacinamide Centella Toner 300ml Centellian24 Madeca Toning Essence Treatment 300ml Niacinamide + GlutathioneVitamin C + Licorice Root6 Types Hyaluronic AcidB Vitamin Complex (B1-B12)Centella Asiatica Extract 300 ml / 10.14 fl ozMade in South Korea Centellian24 Madeca Toning Essence Treatment 300ml - Brightening Toner...
    $13.19
    $21.98
    $13.19
    (-40%)
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  • Mary & May Seoul Edition Rice Niacin 10% Triple Vitamin Serum 80mlMary & May Seoul Edition Rice Niacin 10% Triple Vitamin Serum 80ml – product photo 2
    Mary & May
    Mary & May Seoul Edition Rice Niacin 10% Triple Vitamin Serum 80ml
    Brightening Triple Vitamin Tone-Correcting Serum Mary and May Seoul Edition Rice Niacin 10 Triple Vitamin Serum Niacinamide 10%Rice Extract 10,000 ppmGlutathioneVitamins B5 + C + EAlpha-Bisabolol 80 ml / 2.71 fl ozMade in South Korea Mary and May Seoul Edition Rice Niacin 10 Triple...
    $27.49
    $54.98
    $27.49
    (-50%)

Niacinamide: the active that does several jobs at once

Niacinamide is vitamin B3, and it is unusual in how many things it does well: it evens tone, regulates oil, refines the look of pores and supports the barrier. It is also one of the very few actives almost every skin type tolerates, which is why it appears in so many Korean formulas — often as a supporting player rather than the headline.

How to use it

Uneven tone and post-blemish marks. Niacinamide at 4–10% works steadily on discolouration. Combined with glutathione or vitamin C the effect compounds.

Oil and visible pores. Niacinamide moderates sebum rather than stripping it, which is why it suits oily skin better than harsh mattifiers do.

Barrier support. It helps skin produce its own ceramides, so it belongs in a barrier routine alongside centella.

Alongside anything. Niacinamide layers with retinoids, acids and vitamin C without conflict. The old warnings about combining it with vitamin C have not held up.

Frequently asked questions

What percentage should I look for?
Four to five percent handles barrier and oil. Ten percent works faster on tone but is more likely to cause flushing in reactive skin. Higher than ten offers no added benefit.
Can niacinamide be used with vitamin C?
Yes. The idea that they cancel each other out came from a study using unstable forms at high heat. In finished formulas they work together.
Why does my skin flush with niacinamide?
Usually the concentration is too high for your skin. Drop to five percent, or apply it after a moisturizer rather than onto bare skin.
How long before I see a difference in tone?
Oil control shows within two weeks. Tone and post-blemish marks take eight to twelve weeks of daily use.

Featured niacinamide products

  • Mary&May Seoul Edition Rice Niacin 10 Triple Vitamin Serum 80mlView
  • Celimax The Real Cica Niacinamide AC Calming Serum 30mlView
  • Centellian24 Madeca Toning Essence TreatmentView

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