Cheapest Retatrutide

RESEARCH BUDGET PLANNER

How Much Does Retatrutide Cost per Month?

Estimate your monthly Retatrutide cost using your research inputs. Compare matching listings, check the upfront product price, and review the available vendor discount.

Estimated monthly cost spreads the product price across its calculated supply. Your checkout total may also include shipping, taxes, and applicable fees.

What Changes Your Monthly Retatrutide Cost?

The amount and frequency entered, vial size, and available vendor price all affect the estimate. Comparing the monthly figure alongside the upfront price helps you plan your research budget.

Compare Retatrutide Vendors by Your Research Priorities

Answer two quick questions to narrow the Retatrutide listings by what matters to you. Review matching options, compare prices, and ask the vendor for a listing-specific COA report before choosing.

What Retatrutide Costs Right Now

WPA currently tracks Retatrutide from 13 distinct vendors across 56 separate Retatrutide listings. In-stock Retatrutide vials run from $35.10 to $1393.20 — a 39.7x spread for the same compound. Ameano Peptides holds the lowest sticker price at $35.10. Normalized to milligrams, Retatrutide costs $1.91/mg to $13.46/mg on this page. The best per-milligram value is the 100mg vial from Southern Aminos.

Retatrutide is stocked in 6 sizes: 6mg, 10mg, 12mg, 20mg, 24mg, and 30mg vials. 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 Retatrutide listings WPA tracks are: Southern Aminos — 100mg at $190.61 ($1.91/mg), COA purity 99.74%; Modified Aminos — 100mg at $251.99 ($2.52/mg), COA purity 99.80%; Southern Aminos — 60mg at $165.11 ($2.75/mg), COA purity 99.74%; EZ Peptides — 240mg at $664.20 ($2.77/mg), COA purity 99.56%; EZ Peptides — 480mg at $1393.20 ($2.90/mg).

Retatrutide COA Coverage Across Tracked Vendors

48 of the 56 tracked Retatrutide listings (86%) 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 98.38% to 99.97%. 41 listings record more Retatrutide 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 9/26.

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

How Researchers Actually Dose Retatrutide

Across 87,627 Retatrutide calculator runs logged by the WPA community, the most common dose entered is 2mg, most often once weekly. The size researchers calculate against most often is the 10mg vial (25,542 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 30mg vial yields roughly 15 doses, so the vial size you buy decides how often you reorder as much as the price does.

Retatrutide Discount Codes

56 of the 56 tracked Retatrutide 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 Retatrutide

Retatrutide is the investigational triple GIP/GLP-1/glucagon agonist (Eli Lilly's LY3437943), and the research peptide drawing the most interest for next-generation weight-loss studies. It ships as a lyophilized powder reconstituted with bacteriostatic water before use.

Its reported half-life is ~6 days, which is the main reason the community cadence above looks the way it does. Not FDA-approved.

How to Read the Retatrutide Comparison

• Price per milligram — Every Retatrutide listing is normalized to $1.91/mg-style unit pricing, so a small cheap vial cannot hide a worse real cost than a larger one.
• COA metadata and purity — 48 Retatrutide 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 Retatrutide sizes (6mg, 10mg, 12mg, 20mg, 24mg, and 30mg vials) sit in one table.
• Stock status — Live in-stock state for each Retatrutide listing, refreshed on a recurring basis.

Frequently Asked Questions: Retatrutide

Is it legal and safe to buy Retatrutide for research?

In the US, Retatrutide is sold strictly as a research chemical — legal to buy for laboratory research but not approved for human use. It is an investigational triple GLP-1/GIP/glucagon receptor agonist with no approved human form anywhere in the world. 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 56 Retatrutide listings from 13 vendors.

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

A Certificate of Analysis (COA) may report tests for a specific Retatrutide batch. Check that the report identifies the compound (actually retatrutide, not semaglutide, tirzepatide, or an underdosed mix), 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 Retatrutide specifically, 48 of 56 tracked listings (86%) 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 9/26.

Which Retatrutide vendor should I pick?

There's no single "best" Retatrutide 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. Because retatrutide is newer and pricier than other GLP-1s, COA recency and assayed purity carry extra weight — you don't want to overpay for underfilled vials. 13 vendors currently carry Retatrutide, and Southern Aminos holds the best true value at $1.91/mg on the 100mg vial. Review the actual report and confirm its batch details before making a decision.

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

Judge Retatrutide 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. Retatrutide commonly ships in 10, 15, and 20 mg vials, and the larger sizes usually win on $/mg because a full titration needs the extra peptide anyway. Tracked Retatrutide listings currently run $1.91/mg to $13.46/mg across 6mg, 10mg, 12mg, 20mg, 24mg, 30mg 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 Retatrutide do I need for one full cycle?

Retatrutide is dosed once weekly, and 2 mg is the most common dose in WPA calculator data. At 2 mg per week a single 10 mg vial covers about five weeks, while researchers running a full 8–12 week titration toward 4–8 mg typically buy a 15–20 mg vial or bundle up front. Across 87,627 Retatrutide calculator runs logged here the most common dose is 2mg once weekly; a 30mg vial covers roughly 15 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 Retatrutide?

Yes — many verified Retatrutide 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. 56 of the 56 tracked Retatrutide 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 Retatrutide peptide for sale?

To surface the lowest priced Retatrutide for sale, WPA continuously compares 14 USA suppliers and 956 "for research" products, ranking every verified Retatrutide listing by true cost so the cheapest vials rise to the top. The lowest priced single Retatrutide vial currently starts at $35.10. We currently track 56 Retatrutide products in our system. Pricing is generally refreshed weekly as vendors update stock, prices, and discount codes.