Conclusion: Thus, the CES signature forecasts patient response to adjuvant chemotherapy or radiotherapy. Our results demonstrate the prognostic and predictive power of the CES, suggest a role for centromere misregulation in cancer progression, and support the idea that tumours with extremely high CIN are less tolerant to specific genotoxic therapies.
PubMed 27577169 ↗GHK
People mainly take GHK for skin & hair. Based on 8 first-hand reports and 5 meta-analyses & systematic reviews in the medical literature. Ranked #2575 of 3,539 overall.
Of reports that state an outcome, 0% are positive.
What GHK 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.
At least one meta-analysis, or 5+ randomized controlled trials. The grade measures how much human research exists — read the conclusions below for what it found.
Conclusion: The overall risk of MI with NSAIDs and cyclo-oxygenase-2-specific drugs was small; rofecoxib showed the highest risk. There was an increased MI risk with cyclo-oxygenase-2-specific drugs compared with NSAIDs, but less serious upper gastrointestinal toxicity.
PubMed 17344246 ↗Conclusion: Genotype-guided step-up treatment for children with uncontrolled asthma on ICS may lower asthma exacerbation rates and may be useful for personalising asthma care.
PubMed 39723595 ↗Conclusion: In conclusion, we observed suggestive evidence of an association between road traffic noise exposure and DNAm in child blood. This may indicate that differential DNAm plays a role in the biological mechanism underlying health effects of noise exposure.
PubMed 41352164 ↗Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
Reported side effects
How often each side effect came up across all reports.
What users say
First-hand experiences, quoted verbatim. We show one positive and one negative where both exist.
“I LOVE tirz, ghk and ipamorelin (hair stylist noticed insane amount of growth)”
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 3, 2026. How we rate