A niacinamide 10% serum in a lightweight ampoule formulation designed to boost skin clarity and hydration.
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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 →Mixed
Early verdict · Few reviews so farWhat the gurus are saying
This ampoule stings mildly at first but absorbs quickly into a comfortable, moisturizing texture that surprised reviewers with how hydrating it feels. One concern: it's a spicule-based product (tiny exfoliating particles), which means those with sensitive skin may find it irritating, though it appears gentler than other spicule serums on the market and might be worth patch testing first if you've struggled with similar formulas before.
What they liked
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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 niacinamide 10% serum in a lightweight ampoule formulation designed to boost skin clarity and hydration.
The gurus mostly approve it, but with enough reservations to keep it in the middle at a Guru Score of 74%.
Skin1004 Niacinamide 10% Ample holds a Guru Score of 74%. That is our read on how warmly the experts talk about it, based on the verdicts of 2 expert reviewers we have collected.
Skin1004 Niacinamide 10% Ample is generally suited to oily skin and acne-prone skin.
Lower-priced serums the gurus still rate highly, versus this mid-range pick.
See how they stack up →



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