Also known as: copper peptide, glycyl-l-histidyl-l-lysine copper, ghk copper
Latest evidence update: 1988-09-26
Strongest in Consistency (35). Held back by Sample size (5).
Limited to weak study designs or thin reporting.
Few independent replications; results not yet robust.
Small combined sample; treat as preliminary.
Mixed direction across studies.
Mostly pre-2020 research; updates may be needed.
No quantified outcomes yet. Once we have studies with measurable endpoints, you will see per-outcome magnitude here.
Recommended: No oral supplementation standard. Research uses parenteral or topical formulations.
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