GHK-Cu vs HGH for skin & hair
Short answer: For skin & hair, more users report improvement with HGH — 97% of 32 reports, versus 87% of 202 for GHK-Cu.
GHK-Cu has 0 meta-analyses and 1 randomized trials on PubMed; HGH has 14 and 146.
Based on 496 reports about GHK-Cu and 433 about HGH. Not medical advice.
| GHK-Cu Peptide | HGH Peptide | |
|---|---|---|
| Users say it helped | 62%helped223 reports · high confidence | 65%helped199 reports · high confidence |
| Verdict | Mostly positive | Mostly positive |
| Research | CResearch: Limited | AResearch: Strong |
| Meta-analyses / RCTs | 0 / 1 | 14 / 146 |
| Mainly used for | ||
| Skin & hair % reporting improvement | 87% (202) | 97% (32) |
| Recovery % reporting improvement | 96% (27) | 95% (80) |
| Performance % reporting improvement | 100% (6) | 81% (58) |
| Weight loss % reporting improvement | 88% (8) | 93% (44) |
| Pain & inflammation % reporting improvement | 90% (31) | 68% (19) |
| Common side effects | injection site, redness, stinging, injection pain | water retention, carpal tunnel, joint pain, stomach issues |
| Typical dose reported | Not listed | Not listed |
GHK-CuFull GHK-Cu profile →
What a user said
“Love it. 44 F. Totally helped even out my skin tone (Irish red cheeks), reduced wrinkles on my forehead and neck, thickened my hair which had been thinning, and grew my eye lashes.”
HGHFull HGH profile →
Latest review conclusion
Many critical gaps remain in our knowledge of the pathogenesis, prevention, and management of endometrial trauma and IUAs. PROSPERO (ID: CRD42023366218).
Hum Reprod Update, 2025 ↗What a user said
“one of my original accounts is regarding HGH . Posted it a while back . Helped me a lot.”
Related comparisons
Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate