Does GHK-Cu help with sleep?
Possibly — but there are few reports. 80% of 5 people who reported on GHK-Cu for sleep say it improved. 0% noticed no change and 20% say it got worse.
High-risk compound. Not an approved supplement; serious risks and legal restrictions apply. Nothing here is a recommendation to use it.
Sleep: what users report
80%better5 reports · few reports
4 better0 no change1 worse
What the research says
CResearch: Limited0 meta-analyses · 1 trials on PubMed
None of the top reviews we found look specifically at sleep. See all research on GHK-Cu.
Side effects people mention
injection site 47redness 13stinging 11injection pain 8burning 8
What else is GHK-Cu used for?
Based on few reports — treat as anecdotal. Information only — not medical advice. How we count