Your body makes this, then slowly quits on you after your twenties. Rude.
A tiny peptide hooked to a single copper atom.
Your body makes this stuff on its own, then slowly makes less of it as you age.
(A peptide is a short chain of the building blocks your body uses.) GHK-Cu is a tiny three-amino-acid peptide hooked onto a single copper atom, that's the Cu. It's involved in how skin repairs and rebuilds, and researchers got curious about what happens when you put it back.
It lives on the Skin + Longevity shelf near other cellular-research compounds like MOTS-c.
What it actually does
Picture skin like a wall that's always getting little cracks. GHK-Cu is studied for how it signals the repair crew, the cells that lay down collagen and the framework that keeps skin firm.
The copper is part of the mechanism, not a label. That's the angle researchers keep circling. We're describing what gets studied, not promising it fixes your skin.
The research so far
GHK-Cu is one of the most heavily-researched copper peptides out there. You can read the full chemical profile on its PubChem entry.
Featured angle
The copper tripeptide studied for skin and repair
The headline is that GHK-Cu binds copper and is studied for collagen, skin-matrix, and tissue-repair signaling in cell and animal models. Decades of research. None of it is a claim about what it does for a person.
Skin and longevity research
Collagen signaling
How it relates to the cells that build skin structure.
Antioxidant behavior
Studied at the cellular level too.
Research only
We stock it for research. The studies write the conclusions, not us.
A genuinely deep research file for such a small molecule.
GHK-Cu specs
Compound specificationSKU PP-GHKCU
Also known as
Copper Tripeptide-1, GHK-Copper
What it is
Naturally occurring copper peptide
Sequence
Gly-His-Lys + Cu
Molecular formula
C14H21CuN6O4
Molecular weight
400.9 g/mol
PubChem CID
139035031
Purity
≥99% HPLC
Format
Freeze-dried powder
Storage
Keep it cold and out of the light
The backstory
GHK-Cu has been studied since the 1970s, when researchers noticed something missing from older blood plasma.
1970s discovery
Older plasma had lost something younger plasma still had. It turned out to be this peptide.
Decades of study
It became one of the most-researched copper peptides in skin and repair science.
Where it stands
A deep research file. We're not telling you what it does for you, just where the studies look.
Buying GHK-Cu in Canada
The short version
Read the COA before you buy, not after
Every batch ships with its Certificate of Analysis, right here on this page. A number on a label means nothing without the paper to back it.
Same-day, packed cold
Order GHK-Cu in Canada and it's out the door today. Cold chain, domestic shipping.
Freeze-dried vial
Lyophilized powder, sealed. No ice required for shipping.
Sold for research
Not for human consumption. Nothing on this page is a medical claim.
Not for human consumption. Not approved by Health Canada or any other regulatory body. This product is intended for in vitro and laboratory research applications only.
Certificate of Analysis
HPLC verified. The COA ships with every batch.
99.4%
HPLC Purity
✓ COA Verified
Batch PP-GHKCU-A
Tested
April 2026
Method
HPLC + Mass Spectrometry
Vial size
10mg lyophilized
Stored at
2 to 8°C, dark
Test results
HPLC verified
HPLC Purity99.4%✓ Pass
Mass spec confirmationConfirmed✓ Pass
Net peptide contentWithin spec✓ Pass
Endotoxin screenBelow detection✓ Pass
Visual inspectionUniform white powder✓ Pass
Every order ships with the COA matching that specific batch. If your source does not provide a COA, that is not a source. That is a mystery box.
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What is GHK-Cu?
GHK-Cu is a naturally occurring copper peptide (copper tripeptide-1) studied in skin and tissue-repair research for how it signals collagen-producing cells. Sold as a lyophilized powder for research use only.
What is the molecular weight of GHK-Cu?
GHK-Cu has a molecular weight of 400.9 g/mol and the molecular formula C14H21CuN6O4 (PubChem CID 139035031).
How is the purity verified?
Every batch is tested by HPLC to at least 99% purity, and the Certificate of Analysis for that batch ships with the order and is shown on the product page.
How should it be stored?
Store the lyophilized powder cold and protected from light. Keep it sealed until use to maintain stability.
Does it come with a COA?
Yes. Every batch ships with its Certificate of Analysis, shown right on the product page, so you can confirm purity before you buy.
What does "research use only" mean?
It means this product is intended strictly for laboratory research. It is not for human or animal consumption, and nothing on this page is a medical or therapeutic claim.
Not for human consumption. Not approved by Health Canada. For in vitro research only.