Tirz vial catalogue.
Browse every stocked Tirz vial and its closest comparators in one place. Live pricing per strength, in-stock status, and one-click add to cart.
Looking for the UK commercial hub? See Tirz UK.

All stocked products.

RT3
Triple agonist (GLP-1 / GIP / Glucagon). Our flagship research peptide.

Tirz
Dual GLP-1 / GIP receptor agonist for metabolic research.

Sema
GLP-1 receptor agonist, long-acting analogue.

Bacteriostatic Water
0.9% benzyl alcohol sterile diluent for peptide reconstitution.

Cagri
Long-acting amylin analogue investigated alongside GLP-1 research.
Stocked Tirz strengths: 10 mg · 20 mg · 40 mg. All strengths share the ≥99% HPLC-UV release specification and ship with a batch-specific COA.
Continue on Tirz
Shopping the Tirz catalogue.
What Tirz vials are stocked in the catalogue?[+]
BuyRetaUK stocks lyophilised Tirz (LY3298176) in 10 mg, 20 mg and 40 mg vials. All three share the same ≥99% HPLC-UV release specification and each ships with a batch-specific Certificate of Analysis.
How is pricing shown on the Tirz catalogue?[+]
Each product card shows the starting price for the smallest stocked vial. Full variant pricing appears on the product page, and totals update in the cart before checkout.
Can I add Tirz directly from the catalogue?[+]
Click the Tirz card to open its product page, choose your strength, then Add to cart. Quantities are adjustable on the product page and in the cart.
Is this catalogue selling Mounjaro or Zepbound?[+]
No. Mounjaro and Zepbound are branded prescription medicines. Everything in this catalogue is research-grade Tirz supplied for in-vitro laboratory use only.
Compare research compounds.
Triple vs dual incretin agonist — receptor profile and research framing.
View comparison →Side by sideSelective GLP-1 agonist vs dual GIP/GLP-1 agonist — receptor pharmacology and evidence comparison.
View comparison →Multi-compoundAll GLP-1 / GIP / glucagon research compounds in one place.
View comparison →Certificate of Analysis.
Every batch of Tirz ships with a third-party HPLC and mass-spec Certificate of Analysis. Browse the live COA library to verify your lot.