Dark Spot Correcting Glow Serum — Reddit Reviews

• 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: 5%

• Hyperpigmentation

  Some evidence

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

  On Reddit: Post-acne scars reportedly faded within weeks for one user, making it a community pick for lingering marks. 21 mentions

  What the studies found

  • 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
  • Used with other ingredients, it faded patches more than niacinamide alone or the other ingredient alone
  • The side effects were similar and mild in the study that reported them

  Studied at 2–10% · this product: 5%

• 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: 5%

• Dehydration

  Some evidence

  Hyaluronic Acid: 2 studies tested it on its own. See all 3 studies→

  What the studies found

  • Both studies that tested it on its own found it helped dehydrated skin
  • It improved how much water the skin held more than a placebo
  • Some studies also found skin felt more elastic and looked smoother
  • No side effects were reported in one study

• 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: 5%

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