Ask about GHK-Cu
Get a grounded answer across clinical evidence, community patterns, and risks.
GHK-Cu
Also known as: Copper peptide, GHK-Copper
Copper-binding tripeptide
Mechanism of Action
May promote collagen synthesis, wound healing, and have anti-inflammatory effects. Often used topically for skin.
Note: Also used as cosmetic ingredient
57.1% of individuals with profile data were female — an unusual demographic split in the peptide space. GHK-Cu functions as both a topical cosmetic ingredient and injectable research peptide, with skin health as the dominant focus area (279 mentions from 127 unique individuals). Self-reported data also points to interest in joint health, injury recovery, and hair growth, though clinical evidence remains largely preclinical with 0 completed human trials.
Reported Outcomes
Clinical grade reflects published research; Community grade reflects user reports (n=2,781).
Effects on sleep quality
Effects on mood and cognitive function
Intranasal administration of GHK-Cu in aging and 5xFAD Alzheimer's mouse models delayed cognitive impairment and enhanced performance in spatial memory and navigation tasks.
Changes in energy and fatigue levels
Who Discusses GHK-Cu
From community reports with demographic data.
Gender
n=131
Age Distribution (limited data)
n=60
Side Effects
Based on 180 user reports (n=180). Frequency indicates how often each was mentioned.
Common (>5%)
Uncommon (1-5%)
Risks & Warnings
Important safety considerations based on clinical data and community reports.
Psychiatric Effects
Monitor for mood changes. Report any concerning psychiatric symptoms to healthcare provider.
Injection Site Reactions
Local reactions are common and usually mild. Rotate injection sites.
Dosing
Standard Protocol
- Starting Dose
- 1-2mg daily (injectable) or topical
- Titration
- No established protocol
- Half-life
- Unknown
- Administration
- Subcutaneous injection or topical
Community Dosing Patterns
Based on 214 mentions
Community-reported patterns, not medical advice.
Pricing
Research-grade reference pricing for 50mg vial. Prices vary by vendor and quantity. Research chemicals require self-mixing and lack medical oversight. Shipping is not included.
We do not list vendors. Prices are aggregated from community reports and should be treated as rough ranges.
US Research Grade
Single small vial from US domestic vendors
US Research (Bulk)
Per-dose equivalent when buying larger US vials
China Research
Per-vial when buying 10-pack from Chinese vendors
Research
Key Studies
Molecules (Basel, Switzerland) (2025)
J Am Acad Orthop Surg Glob Res Rev (2026)
Front Bioeng Biotechnol (2023)
Pharmaceutics (2023)
bioRxiv (2023)
Commonly Stacked With
From community members' documented stacks involving GHK-Cu.
Switching Patterns
Based on 177 discussions about switching to or from GHK-Cu.
→ Switching FROM
Users who switched to GHK-Cu
← Switching TO
Users who switched from GHK-Cu