Peptide library · Weight loss / metabolic

Retatrutide

A triple-receptor agonist (GLP-1, GIP, and glucagon) studied for substantial weight loss, appetite reduction, and blood-sugar and metabolic improvements. The newest and most potent GLP-class compound; still investigational.

Also goes by

Retatrutide · LY3437943 · Reta · Triple-agonist (GIP/GLP-1/GCGR) · glp-3 · glp3 · glp-3r

Research-market price

~$7.25 /mg avg

observed range $1.50–$13.00/mg

Average across the research market as of 2026-07-19. Informational only — not a Blue Star price, and not an offer to sell.

Straight talk

Verify reconstitution volume — 45 units = 4.5 mg only at 10 mg/mL.

Thinking about this one?

Don't figure it out alone. Talk it through with Daniel first — twenty years of firsthand experience, free, no strings. And if it makes your plan, the app tracks it: doses, draws, supplies, and the bloodwork to watch.

Educational information, not medical advice. Nothing here says this compound will treat, cure, or prevent anything. Talk to your physician.