Search peptides — top sellers first
Search peptides — top sellers first
Search peptides — top sellers first
4,192 genes reset toward younger patterns
Made in USA — Synthesized in our cGMP-compliant US facility
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Frequently bought together
Researchers usually add these to complete the protocol.
BAC Water · 3ml
Essential · extras
Melanotan 2 · 10mg
Tanning
NAD+ · 100mg
Longevity
GHK-CU · 100mg
Certificate of analysis
We don't publish a brand-wide spec sheet and call it a “COA.” The certificate you receive references the actual lot number stamped on your vial — with the raw chromatograms attached.
Freedom Diagnostics
Independent analytical lab
Certificate of Analysis
RESULT · PASS
Analytical results
HPLC Chromatogram
Main peak 99.86% · other 0.14%
Alex Johnson
Principal Chemist
Scanned 3×
Know your compound
GHK-Cu is a tiny three-part peptide bound to copper that your own blood plasma naturally carries. Levels of it drop sharply as we age, which is part of why researchers got interested in it.
A landmark gene study found it nudged thousands of human genes back toward the way younger cells express them — including the ones that build collagen. That single result made it one of the most-cited peptides in skin and longevity science, with newer work now probing wound repair, fibrosis, and muscle.
For research use only — not for human or veterinary use.
The research
The published findings behind this compound — the headline numbers, in plain terms, each cited to source. Preclinical results are directional (animal / in-vitro) and shown for context, not as therapeutic claims.
In a landmark analysis of human gene data, GHK-Cu was reported to nudge thousands of genes back toward a younger pattern of expression — including the pathways that build collagen.
reset toward younger patterns
Human gene-expression analysis; collagen-synthesis pathways upregulated.
In a mouse scald-wound model, GHK-Cu–liposome-treated wounds closed faster than untreated ones, alongside more cell growth and new blood-vessel formation.
Relative wound-closure rate; driven by proliferation and angiogenesis.
In mice with bleomycin-induced lung fibrosis, GHK-Cu was reported to reduce scarring markers, apparently through anti-oxidative and anti-inflammatory pathways.
Directional: relative fibrosis markers, no single reported figure.
In cigarette-smoke-exposed mice, GHK-Cu was reported to restore impaired skeletal-muscle function through a sirtuin-1 (SIRT1)-dependent pathway.
Directional: relative muscle function via a SIRT1-dependent mechanism.
Mechanism
A copper-binding research peptide studied for resetting gene activity toward younger patterns.
Studied for shifting thousands of human genes back toward the patterns of younger cells.
Investigated for collagen synthesis and wound repair in skin models.
Researched for effects on fibrosis and inflammatory signalling.
For research use only. Mechanisms described reflect published research literature.
The process
Synthesized
Produced under controlled manufacturing with documented, repeatable processes.
HPLC purity
An independent lab reports the exact purity of every lot — a number, never a 'passes'.
Mass-spec identity
Molecular weight confirms the exact sequence is what the label says.
COA published
The certificate is posted to the open library, by lot, before the vial ships.
Best sellers
FAQ
Common questions about GHK-CU
The COA guarantee
Have any lot independently re-tested. If the results don't match the published certificate, we refund the order in full — no returns, no questions.
Order with coverThird-party tested
An independent, accredited lab — no commercial interest in the result.
A COA on every lot
A lot-specific certificate ships with each vial, archived by batch.
Test it yourself → refund
Re-test any batch at any lab. A mismatch is a full refund.
