Originally studied in HIV-associated lipodystrophy, Tesamorelin has broad utility in metabolic research, body composition studies, and investigations into GH/IGF-1 axis modulation
That's because a normal functioning human body stores between 1,000% and 2,000% of their vitamin B12 RDA (via Merck Manuals Consumer Version and ODS)
Dementia 2019;18(5):18581895
R., & Riley, P
(Native, unmodified recombinant human IGF-1, sold as mecasermin/Increlex, is FDA-approved only for a narrow pediatric growth-failure indication and is chemically distinct from the LR3 analog.) In the US it is manufactured and sold almost exclusively as an unregulated "research chemical" labeled "not for human consumption," a labeling practice peptide vendors use to avoid marketing it as an unapproved drug
Many online peptide therapy providers now offer telemedicine consultations that streamline this process