Retinal Skin Booster Serum (100ppm Retinal) — Reddit Reviews

• Anti-Aging

  Strong evidence

  Retinol: 15 studies tested it on its own. See all 23 studies→

  What the studies found

  • Most studies found it helped with signs of aging like wrinkles, uneven tone, and dark spots
  • It often improved fine lines, skin smoothness, firmness, and radiance
  • Some studies found it worked about as well as other common retinoid treatments
  • Stronger retinol often smoothed skin more, but also caused more irritation
  • The most common side effects were redness, irritation, scaling, stinging, and dryness

• Hyperpigmentation

  Some evidence

  Retinol: 5 studies tested it on its own. See all 12 studies→

  What the studies found

  • All 5 studies that tested it on its own found it helped fade dark spots or patches
  • It improved sun spots and uneven skin tone in sun-damaged facial skin
  • It also helped melasma look lighter in one clinical trial
  • Some studies found it worked alongside smoother skin and fewer fine wrinkles
  • The most common side effects were irritation, burning, itching, dryness, redness, scaling, and stinging

• Acne

  Some evidence

  Retinol: 2 studies tested it on its own. See all 5 studies→

  On Reddit: Cheek-area improvement gets a specific mention, with one user saying retinal improved her cheek acne. 3 mentions

  What the studies found

  • Both studies that tested it on its own found it helped acne
  • It reduced pimples, blackheads and whiteheads in people with facial acne
  • It also reduced red, sore spots in people with inflammatory acne
  • It worked less well than benzoyl peroxide in one clinical trial
  • The reported side effect was peeling

• Texture/Pores

  Not proven yet

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

  Retinol: 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 with skin texture and pores
  • Studies found retinol made skin feel smoother and less rough
  • One study found it improved uneven skin tone along with rough texture
  • It worked about as well as tretinoin for these skin changes

• Dullness

  Not proven yet

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

  Retinol: 2 studies tested it on its own. See all 2 studies→

  What the studies found

  • The results are split, so there is no clear answer yet on retinol for dullness
  • Some studies found retinol improved uneven skin tone and dark spots
  • Some studies found retinol improved signs of sun damage linked with dull-looking skin
  • The most common side effects were irritation, and stronger retinol caused more of it

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