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Tirzepatide 15mg

$134.99

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≥98% Purity
Tirzepatide 15mg

Buy Tirzepatide 15mg

39-amino-acid synthetic peptide with C20 fatty diacid modification

Dual GLP-1/GIP agonist — 22.5% weight loss in SURMOUNT-1. The proven generic alternative to Mounjaro.

$134.99 In Stock — Ships Same Week
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≥98% Purity
HPLC Verified
Free Shipping
Orders $200+
30-Day Returns
Unopened Vials

Specifications

Chemical
39-amino-acid synthetic peptide with C20 fatty diacid modification
CAS Number
2023788-19-2
Purity
≥98% HPLC verified
Form
Lyophilized powder
SKU
PG-1009

Why Buy Tirzepatide 15mg from Peptide Scientists

Tirzepatide is the same active compound found in Mounjaro and Zepbound — but for a fraction of the price. Buying it as a research peptide costs ~$10/mg vs hundreds per dose at the pharmacy.

Our Tirzepatide is sourced from Phiogen (Iceland) with ≥98% HPLC purity verification. Every vial ships with full QC documentation.

The 15mg vial is the SURMOUNT-1 maintenance dose and the standard endpoint of all weight-loss escalation protocols. One vial covers a month at peak dose.

Key Features

  • Generic Mounjaro — same active compound at fraction of pharmacy price
  • Dual GLP-1/GIP agonist — clinically proven Phase 3 weight loss
  • −22.5% body weight reduction at 15mg dose (SURMOUNT-1)
  • Once-weekly dosing with 5-day half-life
  • ≥98% HPLC verified purity, free US shipping over $200

Frequently Asked Questions

Is this the same as Mounjaro/Zepbound?
Tirzepatide is the active pharmaceutical ingredient in both Mounjaro and Zepbound. We sell it as a research peptide for laboratory use — not as a regulated drug. The molecule is identical.
How much Tirzepatide is in the 15mg vial?
15mg of pure tirzepatide as lyophilized powder. Reconstituted with bacteriostatic water, this gives you 6 weeks at the standard 2.5mg/week starter dose, or 1 week at the SURMOUNT-1 max dose of 15mg/week.
Why is Tirzepatide cheaper than Ozempic-class drugs?
Pharmaceutical pricing reflects prescription distribution, marketing, and insurance markups. Research peptides are sold direct from manufacturer with no middlemen, giving the same compound at a fraction of pharmacy cost.
Do I need bacteriostatic water to use Tirzepatide?
Yes — Tirzepatide ships as a lyophilized powder and must be reconstituted. We sell bacteriostatic water (0.9% benzyl alcohol) starting at $12.99.

Laboratory Use Only. This product is sold for in-vitro laboratory research. Not for human consumption, injection, or therapeutic application. Consult applicable regulations in your jurisdiction.