the blue serum

Copper peptide serum

$188

Firmer, bouncier, brighter-looking skin in eight weeks. Copper at full dose.

Leaves skin looking
firmer
bouncier
brighter

Buy 2, get 1 free — add 3 to cart, applied automatically

In stock
Free shipping on orders over $199

Pairs well with

the barrier cream$98
the daily spf$98

The copper tripeptide, at the concentration the research uses. Not a trace, not a blend that hides behind a proprietary name — one percent GHK-Cu, printed on the front of the bottle, in a formula built so you can actually stay on it.

Panthenol holds water in the upper layers so the peptide is not working on dry skin. Betaine buffers the sting that makes people quit copper on day four.

30 ml
GHK-Cu 1.0%
Morning and night
Fragrance free

one percent, stated on the front.

Firmer, bouncier, brighter-looking skin in eight weeks. Copper at full dose.

Good for: normal, dry, combination, oily
Targets: loss of firmness, fine lines, dullness
Actives: GHK-Cu 1.0% · panthenol, betaine
Size: 30 ml
Protocol: AM/PM
Layering: do not layer with direct acids

leaves skin looking

firmer
bouncier
brighter

Application

(01)
Four drops, bare skin.
Straight after cleansing, before anything heavier. Press in; do not rub.
(02)
Morning and night.
Both. It is not a treatment you schedule your week around.
(03)
Keep acids on other nights.
Direct acids inactivate copper peptides. Alternate them, do not stack them.

what's in it

One active doing the work, and the ones making it bearable.

GHK-Cu 1.0%: the copper tripeptide, at the concentration the research uses. This is the whole product.
panthenol: pro-vitamin B5. Holds water in the upper layers so the peptide isn't working on dry skin.
betaine: an osmolyte. Buffers the sting that catches people out on week one.

Also made with glycerin, sodium hyaluronate, pentylene glycol