GHK-Cu
GHK-Cu is a naturally occurring copper complex tied to collagen synthesis and used off-label mainly for skin rejuvenation, hair growth, and wound healing; in 24 captured community reports, 15 focus on skin and the vast majority rate those outcomes positive. Clinician-tier guidance runs from 200 mcg to 1.5 mg subcutaneously once or twice daily, continuously or in 4–8 week cycles, though community logs show no consistent pattern and sources diverge on frequency and cycle length. The evidence base is thinner than the discourse suggests; most exploratory indications lack posted human results.
Research Evidence
Evidence shape
The clinical evidence for GHK-Cu is limited. Mapped across three indications, the human data consist of just two thin, exploratory trials—a Phase 4 study in facial skin laxity and an active trial in punch-biopsy wound healing—and neither has posted results, so the entire evidence base rests on single-trial indications without any robust published clinical outcomes. The remainder is animal-only preclinical work, leaving the peptide studied but not at scale.
Anecdotal efficacy
Side effects
Clinical research side effects
Clinical safety table not projected yet.
Anecdotal side effects
Price
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Dosing & Protocol
How GHK-Cu is dosed across research, clinician, and community sources — each evidence tier kept separate so the dose range, frequency, timing, and cycling stay visible without flattening different levels of evidence.
- Timing
- unspecified
- Cycle
- unspecified
1 completed trial identified; trial dosing not reliably extracted from registry data.
- Frequency
- daily
- Timing
- unspecified
- Route
- subQ
- Cycle
- unspecified
Clinician protocols dose 200 µg–1.5 mg daily subQ (3 sources).
No structured protocol details captured for this tier yet.
Community reports show uniformly positive feedback for skin rejuvenation (12 reports), wound healing (4 reports), and hair growth (3 reports). Specific dose information was not consistently reported in community discussions.
Peptide Deep Dive
Peptide Deep Dive is not projected for this peptide yet.
Peptide feedback
0 forum repliesLive community discussion for GHK-Cu, shown here in the site layout and continued on the TVR forum.
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