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Renew · No. 3 Ingredient Monograph

Copper Tripeptide-1

KOP-er try-PEP-tyde one

Blue-tinted bubbles evoking a copper-peptide solution
The signature blue of a copper-peptide solution.
INCI NameCopper Tripeptide-1
Also Known AsCopper peptide, GHK-Cu
Ingredient FamilyCopper-bound signal peptide
What It's ForConditioned, revitalized-looking scalp
In one line

Copper Tripeptide-1 is a three-amino-acid peptide bound to copper (also called GHK-Cu), used in scalp care to help the scalp look conditioned, comfortable and revitalized.

What Copper Tripeptide-1 does

In the No. 3 Scalp Elixir, Copper Tripeptide-1 works alongside Capixyl as the peptide co-star. It's used to support a healthy-looking, well-conditioned scalp and a revitalized appearance at the root — the environment where great-looking hair starts. It brings the copper-peptide story that skincare devotees already know and love into the world of scalp care. It also appears in the No. 1 Scalp Clarifier, carrying that same conditioning signal into the very first step of the ritual.

Under the loupe

Copper is an essential trace element that naturally occurs in the body. When bound into a tripeptide, it becomes a well-studied cosmetic active prized for the look of firmer, healthier skin. Because Juje treats the scalp as skin, that same copper-peptide logic applies at the root. One important formulation detail sits behind the scenes: copper peptides can be destabilized by certain chelating agents, so the Elixir is built to keep the copper peptide performing rather than being quietly deactivated in the bottle — a chemistry choice that protects everything you can actually see and feel.

Copper Tripeptide-1 at a glance
AttributeDetail
TypeCopper-bound signal peptide (GHK-Cu)
OriginA tripeptide complexed with copper, an essential trace mineral
Best paired withCapixyl™, for a fuller density-and-condition story
In the ElixirTargeted, leave-on, problem-area application only

Where you'll find it

1 Exfoliate No. 1 Scalp Clarifier A rinse-off exfoliating treatment, where the copper peptide leaves the scalp feeling conditioned and refreshed. View → 3 Renew No. 3 Scalp Elixir A targeted leave-on treatment. Apply to problem areas only — not all over the scalp. View →

Common questions

What are copper peptides used for in scalp care?

Copper Tripeptide-1 is used to help the scalp look conditioned, comfortable and revitalized. In Juje's No. 3 Scalp Elixir it partners with Capixyl to support a healthy-looking foundation for hair.

Can I use copper peptides with other actives?

In the Elixir, Copper Tripeptide-1 is already formulated to work alongside Capixyl and a soothing botanical blend. Because the peptide is sensitive to certain ingredients, the Elixir's formula is designed to keep it stable and effective.

Is it applied all over the scalp?

No. The No. 3 Scalp Elixir is a targeted treatment for problem areas only, not an all-over scalp product. Apply it precisely where you want to focus.

The Ingredient Index is educational. Juje products are cosmetics intended to improve the look and feel of the scalp and hair; they are not intended to diagnose, treat, cure or prevent any condition.