(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
Research examines how NNMT inhibition increases NAD+ levels, activates sirtuin longevity pathways, and shifts cellular metabolism from energy storage toward energy expenditure
remain flexible and willing to adjust
Reduces inflammation and oxidative stress
Tirzepatide is also marketed as Zepbound (obesity, 2023
Calms, replenishes, and nourishes during overnight renewal