Retatrutide vs tirzepatide, at wholesale

Retatrutide is the newest of the metabolic peptides and the one buyers increasingly ask for beside tirzepatide. This compares them as stock to carry, by what they are and what they cost per mg. A sourcing comparison, not a clinical one; everything here is supplied for research use only.

What each one is

Tirzepatide is an acylated GIP and GLP-1 receptor co-agonist, a 39-residue peptide acting at two receptors.
Retatrutide is an acylated GIP, GLP-1 and glucagon receptor tri-agonist, also 39 residues, acting at three receptors.

At wholesale

Retatrutide: 10 sizes, from $0.428 /mg, batch COA.
Tirzepatide: 12 sizes, from $0.287 /mg, batch COA.

Both are held to not less than 98 percent by RP-HPLC with a certificate per batch, and both price per box, per vial and per mg, the larger vial cheaper per mg.

Which to carry

Tirzepatide is the established seller; retatrutide is the fast-growing one. A reseller building a metabolic range usually carries both, plus semaglutide, in a spread of sizes. See tirzepatide vs semaglutide and the GLP-1 wholesale guide.

Common questions

What is the difference between retatrutide and tirzepatide?

Chemically, tirzepatide is an acylated GIP and GLP-1 receptor co-agonist; retatrutide is an acylated GIP, GLP-1 and glucagon receptor tri-agonist. Both are 39-residue peptides supplied for research use only.

Which is cheaper per mg at wholesale?

Both price per mg on their pages, from $0.428 /mg (retatrutide) and $0.287 /mg (tirzepatide) on the keenest size. The larger vial is cheaper per mg on each.

Should a reseller stock retatrutide?

Increasingly yes. Tirzepatide is the established line and retatrutide the fast-growing one; a metabolic range usually carries both plus semaglutide.