blood work for igf-1 usually comes back in range easier than testosterone. people in the tesa studies are deficient so maybe fewer side effects. if managing sides, 5/2 isn't the only way - you can lower the daily dose anyway. works for me though since i've got other peptides stacked anyway.
Thought they tried 1mg daily and it did nothing for visceral fat compared to placebo. Most here stack it for body recomp, but the actual approved use is visceral fat, so that's what the trials measured. Docs never talked about side effects in the papers either.