A lightweight, water-textured copper peptide serum from NIOD, designed to be layered into a morning or evening skincare routine for anti-aging support.
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
9 experts · Strong agreementWhat the gurus are saying
Watery is the whole story here: this copper serum is thin as water with a dark blue tint, and the gurus who like it say it slips into a morning or evening routine without changing anything else. Dry skin is the catch, since it can feel too light to do much on its own, and a few find the price tag hard to justify. If you mix it, use it within 30 to 60 days.
What they liked
What they flagged
The concerns the experts tie this product to, in their own words. Paid and founder takes don't count.
“I much prefer this texture, which is light, watery and not as oily as the other ones.”
Doctor Anne, watch at 2:38
“It helps to stimulate collagen and it also helps to target fine lines and wrinkles.”
Sincerely Miss Ash, watch at 9:14
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 lightweight, water-textured copper peptide serum from NIOD, designed to be layered into a morning or evening skincare routine for anti-aging support.
The gurus mostly approve it, but with enough reservations to keep it in the middle at a Guru Score of 73%.
NIOD Copper Amino Isolate Serum 2:1 holds a Guru Score of 73%. That is our read on how warmly the experts talk about it, based on the verdicts of 9 expert reviewers we have collected. At least one expert has named it a Top Pick in its category.
NIOD Copper Amino Isolate Serum 2:1 is generally suited to mature skin.
In their reviews, experts say NIOD Copper Amino Isolate Serum 2:1 is good for excess oil and shine (1 expert), fine lines and wrinkles (1 expert) and loss of firmness (1 expert).
Lower-priced serums 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.
Compare side by side →Stories where our editors dug into this product or its brand.
Spotted something on this page that doesn't look right? Let us know.
A weekly read of the takes worth catching up on: the raves, the splits, the ones the gurus won't shut up about. Free, no spam, unsubscribe whenever.
Subscribe to the digest