Healing / repair

GHK-Cu

Cosmetic (topical)

Copper tripeptide-1 · Copper peptide

Copper tripeptide with real topical skin-repair evidence.

Half-life

Short peptide

Route

Topical (approved cosmetic) / subcutaneous (research)

Evidence

Topical cosmetic evidence is real; injectable use is anecdotal/unapproved.

What it is

A naturally occurring copper-binding tripeptide (GHK) complexed with copper, well known in skincare for regeneration and collagen support.

How it works

Promotes collagen/elastin synthesis, angiogenesis and wound remodeling, and delivers copper as a cofactor.

Studied for

Skin repair/anti-aging, wound healing, hair (topical evidence strongest).

Regulatory status

Approved cosmetic ingredient topically; injectable use not approved.

Safety

Well tolerated topically; injectable/compounded use carries sterility risk and possible copper excess.

From the PeptideLab community · real discussions

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What the community reports about GHK-Cu

Aggregated from real community discussions across social platforms and forums. Anecdotal and self-reported — not causal, not medical advice.

The copper peptide — and, in the corpus, one of the most-loved compounds. GHK-Cu is reached for skin (glow, firmness, scar/hair support) but its more interesting claim is systemic: it's described as modulating ~4,000 genes related to tissue repair, switching on collagen production, lowering inflammation and driving cellular turnover.

1,650

discussions analyzed

Multi-source

social + forums

Skin / hair

most-discussed topic

What people discuss

Skin / hair28.5%

Recovery / healing17.2%

Pain / joints14.7%

Weight / fat loss7.2%

Bloodwork / labs7.2%

Most commonly stacked with

BPC-157 1,563 co-mentionsTB-500 1,257 co-mentionsRetatrutide 912 co-mentionsMOTS-c 593 co-mentions

Reported benefits

Skin / hair / collagen / anti-aging is the headline use
Also reported for joint/recovery, wound healing and anti-inflammatory effects

Reported side effects

Injection-site reactions (ISR) are the signature problem — and a common quit reason
Stings/burns on injection; mitigated by warming and slow injection

Coming soonBeta

Full breakdown coming to PeptideLab Pro

Typical reported dose ranges, cycle structures, warnings, and the complete community insight set — rolling out in the Pro app.

Aggregated from public discussions and community forums, synthesized into themes and counts. Anecdotal and self-reported — not causal, not evidence a compound is safe or effective, not medical advice, and not a recommendation to use. No dosing shown.

Reconstitution calculator →

Educational information only — not medical advice, and not a recommendation to use any compound. Many peptides here are not approved for human use; legal status and evidence quality vary and are noted above. This page contains no dosing information. Consult a qualified clinician before making any health decision.