Tirzepatide Peptide for Sale

Compare tirzepatide research peptide prices by vial size and cost per mg. Review available COAs, discount codes and stock, then visit your chosen vendor.

Compare tirzepatide research vials by price, cost per mg, available COAs and stock. Choose a vial size, review the options, and visit your preferred vendor.

How much does Tirzepatide cost per month?

The cheapest verified Tirzepatide protocol works out to about $14.42 per month: EZ Peptides's 600 mg vial at $799.20 with code wpa10, dosed at 2.5 mg once weekly (the most-common community protocol). One vial provides 240.0 doses — about 240.0 weeks of supply at this cadence — so the per-week cost is roughly $3.33, which works out to $14.42 on a 4.33-week month. This protocol is derived from 17,907 verified Tirzepatide calculator runs logged by the WPA community. Cost scales roughly linearly with the per-shot dose and weekly frequency you choose.

Use the live cost-per-month card directly above the vendor table to switch between vial size, per-shot dose, weekly frequency, and vendor strategy (cheapest cost per month across all vendors and vial sizes, or highest-quality vendor by verified COA purity). Every figure recalculates against the same verified pricing shown in the vendor table below.

What Tirzepatide Costs Right Now

WPA currently tracks Tirzepatide from 13 distinct vendors across 59 separate Tirzepatide listings. In-stock Tirzepatide vials run from $26.10 to $799.20 — a 30.6x spread for the same compound. Ameano Peptides holds the lowest sticker price at $26.10. Normalized to milligrams, Tirzepatide costs $1.33/mg to $12.11/mg on this page. The best per-milligram value is the 600mg vial from EZ Peptides.

Tirzepatide is stocked in 6 sizes: 10mg, 15mg, 20mg, 30mg, 40mg, and 50mg vials. 57 of the 59 tracked listings are in stock right now. Because vials of different strengths rarely scale linearly in price, the per-milligram column is the only fair way to rank them.

Ranked by true cost per milligram, the Tirzepatide listings WPA tracks are: EZ Peptides — 600mg at $799.20 ($1.33/mg), COA purity 99.93%; Ameano Peptides — 60mg at $81.90 ($1.36/mg), COA purity 99.94%; Ameano Peptides — 30mg at $52.20 ($1.74/mg), COA purity 99.94%; EZ Peptides — 300mg at $529.20 ($1.76/mg), COA purity 99.69%; Modified Aminos — 120mg at $251.99 ($2.10/mg), COA purity 99.80%.

Tirzepatide COA Coverage Across Tracked Vendors

48 of the 59 tracked Tirzepatide listings (81%) are marked as having COA availability in WPA's listing data; this marker is not independent verification. A purity value is recorded for 48 listings; purity alone does not establish identity or independent testing. The recorded purity values range from 99.00% to 99.98%. 41 listings record more Tirzepatide in the vial than the label claims; check the vendor's report and batch before drawing conclusions. The latest COA date recorded in WPA's listing data is 8/26.

To assess a COA, inspect the actual report for the independent lab, test date, and a batch and vial size matching the Tirzepatide offer. WPA's listing fields do not establish that a report was independently verified.

How Researchers Actually Dose Tirzepatide

Across 17,907 Tirzepatide calculator runs logged by the WPA community, the most common dose entered is 2.5mg, most often once weekly. The size researchers calculate against most often is the 30mg vial (4,711 runs). The most common bacteriostatic water volume is 2mL, which is what sets the draw marks on the syringe for that dose. At that dose a 50mg vial yields roughly 20 doses, so the vial size you buy decides how often you reorder as much as the price does.

Tirzepatide Discount Codes

59 of the 59 tracked Tirzepatide listings carry a WPA researcher discount code. The largest live discount is 50% off. Every price and per-milligram figure on this page is the post-discount number, so you are never comparing a discounted listing against an undiscounted one. Codes change and some exclude sale items or carry order minimums.

About Tirzepatide

Tirzepatide is the dual GIP/GLP-1 receptor agonist behind Mounjaro and Zepbound, and the research peptide most often sourced for weight-management and metabolic studies. It ships as a lyophilized powder you reconstitute with bacteriostatic water before use.

Its reported half-life is ~5 days, which is the main reason the community cadence above looks the way it does. FDA-approved as Mounjaro (T2D, 2022) and Zepbound (obesity, 2023).

How to Read the Tirzepatide Comparison

  • Price per milligram — Every Tirzepatide listing is normalized to $1.33/mg-style unit pricing, so a small cheap vial cannot hide a worse real cost than a larger one.
  • COA metadata and purity — 48 Tirzepatide listings are marked for COA availability, and 48 have a recorded purity value. These fields do not independently verify a report.
  • Vials sizes — All 6 stocked Tirzepatide sizes (10mg, 15mg, 20mg, 30mg, 40mg, and 50mg vials) sit in one table.
  • Stock status — Live in-stock state for each Tirzepatide listing, refreshed on a recurring basis.

Frequently Asked Questions: Tirzepatide

Is it legal and safe to buy Tirzepatide for research?

In the US, Tirzepatide is sold strictly as a research chemical — legal to buy for laboratory research but not approved for human use. It is the same molecule as the approved GLP-1/GIP drug, but research-grade vials are not FDA-approved and are sold for laboratory use only. The real variable isn't legality, it's quality: unverified suppliers can ship underdosed, impure, or mislabeled material. WPA records COA-related listing fields where supplied, but does not independently verify every report. Inspect the actual batch report and its laboratory, identity testing, and date before drawing conclusions. Right now that screen covers 59 Tirzepatide listings from 13 vendors, 57 of them in stock.

How do I verify a Tirzepatide COA so I'm not getting an underdosed vial?

A Certificate of Analysis (COA) may report tests for a specific Tirzepatide batch. Check that the report identifies the compound (actually tirzepatide, not semaglutide or an underdosed blend), names the laboratory, describes the test method and result, and matches the offered batch and date. A recorded purity value or COA-availability flag in WPA's listing data is not independent verification. Open the vendor listing and inspect the actual report before drawing conclusions. For Tirzepatide specifically, 48 of 59 tracked listings (81%) are marked as having COA availability in WPA's listing data; that marker is not independent verification. A purity value is separately recorded for 48 listings; purity alone does not establish identity or independent testing. The latest COA date recorded in the listing data is 8/26.

Which Tirzepatide vendor should I pick?

There's no single "best" Tirzepatide vendor — it depends on what you weigh most. WPA ranks tracked listings using recorded purity and date fields where available, visitor click activity, price, stock status, and discount data; this ranking is not independent verification of a report. Tirzepatide is one of the most-bought compounds on the site, so lifetime click data is especially meaningful here — but always cross-check the COA date, since high-volume sellers rotate batches often. 13 vendors currently carry Tirzepatide, and EZ Peptides holds the best true value at $1.33/mg on the 600mg vial. Review the actual report and confirm its batch details before making a decision.

How much does Tirzepatide cost — and how do I know I'm not overpaying?

Judge Tirzepatide by true price per milligram, not the sticker price on one vial — a cheap small vial often costs more per mg than a larger one. It ships in everything from 10 mg up to 60 mg vials, and the big multi-dose vials dramatically lower $/mg over a full titration cycle. Tracked Tirzepatide listings currently run $1.33/mg to $12.11/mg across 10mg, 15mg, 20mg, 30mg, 40mg, 50mg vials. WPA normalizes tracked listings to $/mg, and the live cost-per-month card estimates your spend at the most common dose. The one catch: the lowest $/mg sometimes means buying a bigger vial than your cycle needs.

How much Tirzepatide do I need for one full cycle?

Tirzepatide is dosed once weekly, starting around 2.5 mg in WPA data and titrating up to 5, 7.5, 10 mg and beyond. At 2.5 mg per week a 30 mg vial covers about 12 weeks, but a cycle that ramps the dose burns through it faster, so many researchers buy a larger vial or bundle to cover a full titration without re-ordering. Across 17,907 Tirzepatide calculator runs logged here the most common dose is 2.5mg once weekly; a 50mg vial covers roughly 20 of them, and that is the figure the cost-per-month card on this page is built on. Protocols vary and this reflects the most common community setup, not medical advice — research use only. Use the cost-per-month card and the calculator on this page to size your exact run, then buy enough to finish a cycle without re-ordering mid-protocol.

Are discount codes available for Tirzepatide?

Yes — many verified Tirzepatide vendors offer WPA researcher discount codes, and those savings are already baked into the $/mg ranking on this page, so you're never comparing a pre-discount price against a post-discount one. Codes do change, and some exclude sale items or carry order minimums. 59 of the 59 tracked Tirzepatide listings carry a code right now, the largest worth 50% off. Each listing shows the current code and the discounted price where one exists.

Lowest priced tirzepatide peptide for sale?

To surface the lowest priced tirzepatide for sale, WPA continuously compares 14 USA suppliers and 956 "for research" products, ranking every verified tirzepatide listing by true cost so the cheapest vials rise to the top. The lowest priced single tirzepatide vial currently starts at $26.10. We currently track 60 tirzepatide products in our system. Pricing is generally refreshed weekly as vendors update stock, prices, and discount codes.