GHK-Cu and Gene Expression Research Research using the Broad Institutes Connectivity Map found that GHK is capable of up- and downregulating at least 4,000 human genes, with studies identifying 47 DNA repair genes stimulated and 5 suppressed findings that suggest a broad regulatory role at the genomic level
Its interaction with MC1R, MC3R, MC4R, and MC5R receptors makes it a compound of interest in pigmentation pathway studies, melanogenesis research models, and metabolic signaling exploration
The three hormone receptors that are activated with retatrutide are GIP, glucose-dependent insulinotropic polypeptide, which is a hormone that is released after eating to stimulate insulin production
Considerations: May be appropriate for individuals with emotional eating or cravings, but carries risks such as nausea, headache, and may not be suitable for people with a history of seizures
Carriers of the milder variant fared somewhat better but still lagged behind