PlainPill

GHK-Cu

People mainly take GHK-Cu for skin & hair, recovery, weight loss. Based on 219 first-hand reports and 0 meta-analyses & systematic reviews in the medical literature. Ranked #41 of 1,974 overall.

56
User score
Mostly positive
32% positive9% mixed2% negative57% unclear

Of reports that state an outcome, 74% are positive.

Clinical research
CLimited research
0
meta-analyses
1
RCTs
128
papers
High-risk compound. Peptides are not approved as supplements, carry serious and sometimes irreversible risks, are banned in competitive sport and may be restricted where you live. Nothing here is a recommendation to use it.

What GHK-Cu does, according to users

Of the people who reported each effect, the share who said it got better.

What the research says

Systematic reviews and meta-analyses from PubMed, with their published conclusions.

CLimited research

1–4 randomized controlled trials, no meta-analysis yet. The grade measures how much human research exists — read the conclusions below for what it found.

No meta-analyses or systematic reviews published yet — 1 randomized trials found.

Dosage people report

As stated by users — not a recommendation. Follow the label or your doctor.

1.5 mgdaily
injectedas reported
2 mgdaily
1 mgnightly before bed
before bedas reported
1-2 mgdaily

Reported side effects

How often each side effect came up across all reports.

injection site ×12bruising ×4injection pain ×4stinging ×3copper uglies ×2redness ×2fatigue ×2dizziness ×2

What users say

Verbatim quotes, shortened only — each links to the original discussion.

“You can add BPC157 and GHK-CU injection too.”
Source discussion ↗
“Ghk-Cu”
Source discussion ↗
“I have also been dosing 1.5mg of GHK-cu every day for two weeks”
Source discussion ↗
“Before bed Selank Dsip GHK-Cu Tesamorelin Ipamorelin”
Source discussion ↗
“Currently = 2mg/week Reta + 2mg GHK-Cu Daily”
Source discussion ↗
Top discussions (5)

Other options for skin & hair

User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate