Reviewed by Peptide Treatments Medical Advisory Board
GHK-Cu: Side Effects & Safety
Known side effects, safety considerations, and adverse reaction data for GHK-Cu.
Back to GHK-Cu overviewData source: Side effect data comes from clinical trials, preclinical research, and anecdotal reports. No FDA-approved labeling exists for this compound.
Reported Side Effects (6 items)
| # | Side Effect |
|---|---|
| 1 | Skin irritation (2-5% with topical use) |
| 2 | Redness (1-3%) |
| 3 | Dryness (rare) |
| 4 | Allergic reaction (rare) |
| 5 | Theoretical copper accumulation with long-term use |
| 6 | Limited safety data for injectable routes |