A leave-on serum combining chemical exfoliants (lactic acid, glycolic acid, salicylic acid and gluconolactone) with enzymes to gently exfoliate and brighten skin.
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
This formula gets smart about exfoliation safety by using lower concentrations of photosensitizing acids alongside non-photosensitizing alternatives and enzymes that work together to loosen dead skin and oil without needing higher acid percentages. Kelly Driscoll found it leaves skin noticeably smoother, softer, and brighter, with improved hydration when used once or twice weekly, and notes the serum's precise dropper and thin texture make it last well despite mid-range pricing. One other taker found it reasonably priced, though not much else has been weighed in yet.
What they liked
What they flagged
Nothing. None of the experts who reviewed it raised a problem.
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.
A leave-on serum combining chemical exfoliants (lactic acid, glycolic acid, salicylic acid and gluconolactone) with enzymes to gently exfoliate and brighten skin.
Mostly yes. 1 of the 2 gurus who reviewed it give it their stamp of approval, for a Guru Score of 75%.
Lanz Waterbank Aqua Facial Serum with BHA and AHA holds a Guru Score of 75%. That is our read on how warmly the experts talk about it, based on the verdicts of 2 expert reviewers we have collected.
Lanz Waterbank Aqua Facial Serum with BHA and AHA is generally suited to oily skin and acne-prone skin.
Lower-priced masks and peels the gurus still rate highly, versus this mid-range pick.
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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