Niacinamide 20 Serum — Reddit Reviews

• Hyperpigmentation

  Strong evidence

  Tranexamic Acid: 16 studies tested it on its own. See all 21 studies→

  On Reddit: Niacinamide 20% concentration targets fading marks quickly while also preventing new dark spots from forming. 5 mentions

  Both ingredients for hyperpigmentation

  Tranexamic Acid · Strong evidence

  Niacinamide · Some evidence

  5 studies tested it on its own. See all 20 studies→

  • All 5 studies that tested it on its own found it helped fade dark spots
  • On its own, it reduced facial darkening and made skin look lighter than a placebo
  • It also improved dark spots linked with sun damage in one clinical trial

  Studied at 2–10% · this product: 20%

• Acne

  Some evidence

  Niacinamide: 6 studies tested it on its own. See all 17 studies→

  What the studies found

  • Most studies found niacinamide helped acne
  • It often cleared acne about as well as clindamycin when put on the skin
  • Some studies found it helped reduce red, sore spots and pimples
  • Some evidence is still uncertain because some studies found no clear difference

  Studied at 4–10% · this product: 20%

• Anti-Aging

  Some evidence

  Niacinamide: 3 studies tested it on its own. See all 9 studies→

  What the studies found

  • All 3 studies that tested it on its own found it helped with signs of aging
  • Studies found it improved the look of wrinkles and made skin seem firmer
  • Studies also found it helped dark spots and reduced redness and yellowing
  • One study found it helped skin hold more water and lowered water loss through the skin
  • Used with another ingredient, it improved dark spots, fine lines, wrinkles, and firmness more than niacinamide alone

  Studied at 2–5% · this product: 20%

• Skin Barrier

  Not proven yet

  Few or mixed studies. This claim isn't established.

  Niacinamide: 1 study tested it on its own. See all 17 studies→

  What the studies found

  • The one study that tested it on its own found it helped the skin barrier
  • It lowered water loss through the skin
  • It increased the thickness of the outer skin layer

  Studied at 4–5% · this product: 20%

• Dullness

  Not proven yet

  Few or mixed studies. This claim isn't established.

  Niacinamide: 1 study tested it on its own. See all 4 studies→

  What the studies found

  • The only study on niacinamide by itself found it helped dull skin
  • Niacinamide on its own improved dark spots in the study
  • Niacinamide on its own also improved fine lines, wrinkles, and firmness
  • Used with another ingredient, it helped more than niacinamide alone in that study

  Studied at 2% · this product: 20%

• Texture/Pores

  Not proven yet

  Few or mixed studies. This claim isn't established.

  Niacinamide: No study tested it on its own. See all 4 studies→

  What the studies found

  • Its own effect has not been measured because no study tested niacinamide on its own for texture or pores
  • Some studies found smoother skin when niacinamide was used together with other ingredients
  • Some studies found improved pores and oiliness in products that included niacinamide with other ingredients
  • Some studies also found more even-looking skin texture in products that included niacinamide with other ingredients

  Studied at 5% · this product: 20%

Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.