A lactic acid serum designed to exfoliate and brighten skin, formulated with 9% lactic acid and glucanolactone for a gentler approach to chemical exfoliation.
Water/Aqua/Eau, Lactic Acid, Glycerin, Butylene Glycol, Caprylic/Capric Triglyceride, Heptyl Undecylenate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Panthenol, Tocopherol, Vaccinium Myrtillus Fruit Extract, Citrus Limon (Lemon) Fruit Extract, Aloe Barbadensis Leaf Juice, Saccharum Officinarum (Sugarcane) Extract, Glyceryl Oleate Citrate, Acer Saccharum (Sugar Maple) Extract, Citrus Aurantium Dulcis (Orange) Fruit Extract, Camellia Sinensis Leaf Extract, Chamomilla Recutita (Matricaria) Flower Extract, Tartaric Acid, Malic Acid, Sodium Hyaluronate, Sodium Acetylated Hyaluronate, Hydrolyzed Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Sodium Benzoate, Potassium Sorbate, Pentylene Glycol, Citric Acid, Polysorbate 60, Sorbitan Isostearate, Glycine Soja (Soybean) Oil, Glycolic Acid, Xanthan Gum, Sodium Hydroxide, Caprylyl Glycol, Gluconolactone, Tetrasodium Glutamate Diacetate
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Guru Score
The Guru Score: every expert's verdict on a product, in one simple number.
Under the score you'll see how many experts weighed in, or "Early verdict" while only a few have. Paid takes count for half in the score.
Guru Certified means at least 6 experts, a score of 85% or more, and almost no Nays.
How we score →Yay
Early verdict · Few reviews so farWhat the gurus are saying
The 9% lactic acid concentration paired with glucanolactone (a gentler exfoliant) makes this serum well suited to sensitive skin, where it helps refine texture and brighten dull patches without harsh irritation. Gurus praise its lightweight, thin consistency for easy absorption, and note it works particularly well on textured areas like bumps on the back of the arms and the face.
What they liked
What they flagged
Nothing. None of the experts who reviewed it raised a problem.
Best for
Type
Key actives
Formula notes
The concerns the experts tie this product to, in their own words. Paid and founder takes don't count.
“It will help to refine texture if you're sensitive and brighten dull skin.”
Dr. Shereene Idriss, watch at 4:44
“It is a very lightweight serum and it's really not very irritating.”
Dr. Shereene Idriss, watch at 12:17
“It will help to refine texture if you're sensitive and brighten dull skin.”
Dr. Shereene Idriss, watch at 4:44
“I actually really do like, especially on the bumps on the back of the arms.”
Dr. Shereene Idriss, watch at 3:23
Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.
Independent of what the gurus think, this is what the published research supports about the main active ingredients here.
Alpha hydroxy acids loosen the bonds holding dead cells at the surface. The evidence supports smoother texture and more even tone over time, and they can leave skin more sensitive to sun.
Ingredients like these draw water into the surface layers and slow how fast it leaves. The evidence is for comfort, softness and hydration rather than for changing the structure of the skin.
Source: DermNet
Vitamin E is an antioxidant, and it is often in a formula to keep the other ingredients stable rather than as the active itself. It pairs well with vitamin C, though on its own the evidence for visible change is limited.
A lactic acid serum designed to exfoliate and brighten skin, formulated with 9% lactic acid and glucanolactone for a gentler approach to chemical exfoliation.
Yes. All 2 gurus who reviewed it give it their stamp of approval, for a Guru Score of 88%.
Shani Darden Lactic Acid Exfoliating Serum holds a Guru Score of 88%. That is our read on how warmly the experts talk about it, based on the verdicts of 2 expert reviewers we have collected. At least one expert has named it a Top Pick in its category.
In their reviews, experts say Shani Darden Lactic Acid Exfoliating Serum is good for dull skin (2 experts), irritated or reactive skin (1 expert), rough or uneven texture (1 expert) and keratosis pilaris (bumpy arms) (1 expert).
2 experts who reviewed Shani Darden Lactic Acid Exfoliating Serum say it is. Dr. Shereene Idriss put it this way: “It will help to refine texture if you're sensitive and brighten dull skin.”
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See how they stack up →Other products the same gurus have weighed in on, plus more from this brand and category.
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