GHK-Cu vs Klow for skin & hair
Short answer: For skin & hair, more users report improvement with Klow — 93% of 15 reports, versus 87% of 202 for GHK-Cu.
GHK-Cu has 0 meta-analyses and 1 randomized trials on PubMed; Klow has 0 and 0.
Based on 496 reports about GHK-Cu and 53 about Klow. Not medical advice.
| GHK-Cu Peptide | Klow Peptide | |
|---|---|---|
| Users say it helped | 62%helped223 reports · high confidence | 81%helped28 reports · medium confidence |
| Verdict | Mostly positive | Mostly positive |
| Research | CResearch: Limited | DResearch: None |
| Meta-analyses / RCTs | 0 / 1 | 0 / 0 |
| Mainly used for | ||
| Skin & hair % reporting improvement | 87% (202) | 93% (15) |
| Recovery % reporting improvement | 96% (27) | 100% (11) |
| Pain & inflammation % reporting improvement | 90% (31) | 75% (4) |
| Mood % reporting improvement | 86% (7) | 100% (2) |
| Performance % reporting improvement | 100% (6) | 100% (3) |
| Common side effects | injection site, redness, stinging, injection pain | injection site, injection pain, soreness, bruising |
| 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.”
KlowFull Klow profile →
What a user said
“Skin looks better, shoulder pain is gone, and my training capacity went up 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