Reviewed by Peptide Treatments Medical Advisory Board
GHK Peptide: Side Effects & Safety
Known side effects, safety considerations, and adverse reaction data for GHK Peptide.
Back to GHK Peptide overviewData source: Side effect data comes from preclinical research and anecdotal reports. This compound has not undergone formal human clinical trials.
Reported Side Effects (4 items)
| # | Side Effect |
|---|---|
| 1 | No published human safety data for GHK (copper-free) |
| 2 | Unknown activity profile without copper may carry unexpected effects |
| 3 | Possible skin irritation from topical peptide application |
| 4 | No pharmaceutical-grade standard — contamination risk from unregulated sources |