Comment by GenerWork

To your first point, if you know where to look, you can get tens of vials of GLP-1s that have much higher dosing per vial for cheaper than you can get a third of the amount on the grey market. A lot of these sites even have purity testing to soothe consumers worries that they're getting garbage. For your third point, you have the FDA limiting HGH, yet you can buy the growth horomone releasing factor peptides (tesamorelin, sermorelin, ipamorelin) after doing a simple Google search.

As for broscience, moving into peptides was a logical next step after exhausting anabolic steroid "research". In fact, I'd say that biohackers are actually behind the bros when it comes to trying various peptides out and documenting experiences.