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GHK-Cu

Also known as: Copper Peptide, Copper Tripeptide-1, GHK-Copper

GHK-Cu is a naturally occurring copper-binding tripeptide that has been studied in the contexts of skin appearance, wound-healing research, and tissue remodeling, and appears in some cosmetic formulations. Evidence outside of topical cosmetic use is largely preclinical. This entry is informational and is not a recommendation to use the compound.

At a glance

CategoryHealing & Recovery
Classpeptide, copper-peptide
Half-life1 hour
Typical routesubcutaneous
Common vial strengths50 mg, 100 mg
StorageLyophilized powder is commonly stored cool and dry; reconstituted and topical solutions are typically kept refrigerated and protected from light.

Elimination curve

100%50%25%12.5%12340hours after a single dose
Simple single‑compartment elimination model ((1/2)t/t½): it ignores absorption, route, and individual variation, so treat it as a shape, not a measurement. In the Peptilot app this curve is stacked across your actual logged doses.

Full clearance milestones on the GHK-Cu half-life page.

Doing the vial math? The GHK-Cu reconstitution calculator converts mg to insulin-syringe units, free and without an account.

Questions, answered.

What is GHK-Cu?
GHK-Cu is a naturally occurring copper-binding tripeptide that has been studied in the contexts of skin appearance, wound-healing research, and tissue remodeling, and appears in some cosmetic formulations. Evidence outside of topical cosmetic use is largely preclinical. This entry is informational and is not a recommendation to use the compound.
What is GHK-Cu's half-life?
GHK-Cu's elimination half-life is approximately 1 hour, per published pharmacokinetic data. After about five half-lives (~5 hours), a single dose is roughly 97% eliminated. Individual clearance varies.
Is GHK-Cu the same as Copper Peptide or Copper Tripeptide-1 or GHK-Copper?
Copper Peptide and Copper Tripeptide-1 and GHK-Copper are other names associated with GHK-Cu.
What do people log alongside GHK-Cu?
People tracking this compound often log skin or application-site observations and tolerance. Peptilot has one-tap logging for doses, side effects, weight, and injection sites, so patterns show up in your own record.

Educational information for people who track their protocols — not medical advice, and never a recommendation to use any compound. Always work with a qualified healthcare provider.

Track GHK-Cu with one-tap dose logs, estimated level charts, site rotation, and reminders — free for your first 3 days.

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