when was the first glp 1 agonist approved Landscape Of GLP-1 Receptor Agonists In Diabetes And Obesity Treatment Victoza: The First Generic GLP-1

And this is certainly the case when it comes to testosterone

Neuroprotective Research Applications Studies in Journal of Neurochemistry explored DSIPs neuroprotective properties, demonstrating reduced oxidative stress markers in brain tissue, enhanced neuronal survival under stress conditions, improved synaptic function parameters, and protection against excitotoxic injury in research models

The peptide works through an entirely different mechanism involving beta-3 adrenergic receptors in adipose tissue, bypassing the growth hormone/IGF-1 axis completely

Leucine, glucose, and energy metabolism after 3 days of fasting in healthy human subjects