Things like GHRP3 can potently increase growth hormone, but are known to also potently increase prolactin and cortisol, leading to more than a doubling of circulating cortisol, which depending on how well regulated it is across the time of day can be problematic
As a triple GLP-1/GIP/glucagon receptor agonist, it adds glucagon receptor activation on top of the dual mechanisms that tirzepatide already provides
[3] NNMT sits at an intersection of two important resource pools: it consumes SAM (the cells universal methyl donor) and it draws on nicotinamide that would otherwise feed the NAD salvage pathway
Because TB-500 is often overexpressed in malignant cells and facilitates angiogenesis, there is a theoretical risk that it could accelerate the growth of dormant tumors or increase metastatic capacity in certain cancer phenotypes
"MOTS-c levels in human blood decline with age and correlate with insulin sensitivity, positioning the peptide not just as a metabolic tool but as a potential biomarker of mitochondrial vitality." On the exercise side, a pivotal finding came from studies measuring endogenous MOTS-c in human subjects
Gao et al