AHA 7 Whitehead Power Liquid — Reddit Reviews

• Anti-Aging

  Strong evidence

  Glycolic Acid: 17 studies tested it on its own. See all 22 studies→

  Both ingredients for anti-aging

  Glycolic Acid · Strong evidence

  • Most studies found glycolic acid helped with signs of aging
  • It often improved fine lines, roughness, and overall skin texture
  • Some studies found it also helped discoloration and age spots look better
  • It often worked about as well as other anti-aging treatments, though not always better
  • The most common side effects were stinging, burning, and irritation

  Niacinamide · Some evidence

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

  • 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

• Hyperpigmentation

  Some evidence

  Glycolic Acid: 16 studies tested it on its own. See all 25 studies→

  On Reddit: Bacne and dark spots clear up, though users warn it can sting like crazy. 3 mentions

  Both ingredients for hyperpigmentation

  Glycolic Acid · Some evidence

  • Most studies found glycolic acid helped fade dark spots or patches
  • It often worked better when used with other treatments than those treatments alone
  • It usually worked about as well as some other peel treatments, but results were mixed against others
  • Some studies found it improved melasma and post-acne dark marks while also improving skin texture
  • The most common side effects were irritation, discomfort, and short-lived skin reactions, with rare lasting light spots

  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
  • 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

• Acne

  Some evidence

  Glycolic Acid: 13 studies tested it on its own. See all 22 studies→

  On Reddit: Before heads form, spot-treating red bumps at night often leaves them gone by morning. 21 mentions

  Both ingredients for acne

  Glycolic Acid · Some evidence

  • Most of these studies found it helped clear acne
  • It often reduced blackheads and whiteheads, and some studies also found fewer red, sore spots
  • It cleared acne more than a placebo in some studies
  • It worked about as well as some other acne peels and creams in several studies
  • The most common side effects were peeling and other early skin irritation

  Niacinamide · Some evidence

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

  • 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

• Texture/Pores

  Not proven yet

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

  Glycolic Acid: 4 studies tested it on its own. See all 5 studies→

  On Reddit: Catch forming whiteheads early, and they’re often gone by the next day. 19 mentions

  What the studies found

  • The results were split, so there is no clear answer yet on texture and pores
  • Some studies found glycolic acid improved skin texture, roughness, and skin clarity
  • Some studies found it softened fine lines, but one found wrinkle changes were not clearly different
  • The most common side effects were stinging and burning, and some studies found more side effects than comparison treatments

• 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

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