Where to Buy Retatrutide in Canada — Reta Peptide 5mg & 10mg RUO Vials with Lot COA

Retatrutide in Canada is listed here as two Research Use Only catalogue lines, Retatrutide 5mg and Retatrutide 10mg, both from one third-party-tested lot. If you are working out where to buy Retatrutide in Canada with the paperwork a lab file needs, this page sets out what is listed, what the lot certificate reports, how orders ship within Canada and how the lyophilized powder is listed for storage. Retatrutide is sold here only as a laboratory reagent for in-vitro research and analytical work. It is not a medicine and it is not for human or veterinary use. Buyers must be 21 or older.

Key takeaways

Reta, retatrutide peptide and GLP-3: one compound, several names

Searches for reta peptide, retatrutide peptide and "GLP-3" all point to the same molecule. Biosynth's reference listing (FR04567) gives CAS 2381089-83-2, the synonym LY-3437943 and a 39-amino-acid sequence that includes non-coded residues (Aib and α-methyl-leucine) and a C20 fatty diacid on the lysine at position 17. Coskun et al. (2022) introduced the compound under its developer code LY3437943 as a single peptide with agonist activity at the glucagon, GIP and GLP-1 receptors, which is where the informal "triple agonist" and "GLP-3" labels come from. Common misspellings such as retratrutide and retatutride refer to the same compound. On a vial label and in a reagent record, use the full name Retatrutide with the CAS number.

Retatrutide catalogue lines available in Canada

Two catalogue lines are listed. They are the same compound and differ only in fill mass per vial:

• Retatrutide 5mg — one lyophilized vial, SKU HRL-RETA5
• Retatrutide 10mg — one lyophilized vial, SKU HRL-RETA10

Current CAD prices are shown on each product page and in the catalogue cards further down this page. The full Research Use Only catalogue is in the shop, and every other compound is summarised on buy peptides Canada.

Retatrutide price in Canada

Retatrutide for sale in Canada through this catalogue is priced per vial in Canadian dollars:

These are the catalogue prices at the time of writing; the price shown on each product page at checkout is the one that applies. Shipping within Canada is a flat $15 CAD per order and free on orders of $150 CAD or more.

Where to buy Retatrutide in Canada: what to check before you order

There is no independent ranking of the best place to buy Retatrutide online in Canada, so compare suppliers on documents you can check yourself:

1. A named third-party certificate. The certificate should name the issuing laboratory, the lot and a report number you can look up. Here that is Freedom Diagnostics, Lot M26S012, COA #2604070133.
2. A lot that matches the vial. The lot printed on the vial label should be the lot on the certificate, not a different batch.
3. Identity fields on the listing. CAS 2381089-83-2, molecular formula and fill mass should appear on the product page.
4. Prices in CAD and Canadian shipping terms. Prices here are in CAD, orders ship to Canadian addresses only, and the shipping terms are published before checkout.
5. Research Use Only terms. A laboratory supplier should state that the material is not for human or veterinary use and should not give usage instructions.

To buy Retatrutide online in Canada from this catalogue, add the 5mg or 10mg line from its product page or the shop and check out in CAD. Buyers must be 21 or older.

Retatrutide specification

Retatrutide research identifiers

In the published literature Retatrutide is described as a single synthetic peptide studied for agonist activity at three receptors: GIP, GLP-1 and glucagon. Its sequence includes non-proteinogenic residues and a fatty-acid side chain, which is why the molecular formula and mass are larger than a plain 39-residue chain would suggest. These identifiers are what an incoming-materials record should carry; they say nothing about suitability for any use outside in-vitro research.

Retatrutide COA, purity and third-party testing

The current Retatrutide lot was assayed by Freedom Diagnostics, an independent third-party laboratory. The certificate reports 99.86% purity by HPLC-MS for Lot M26S012 (COA #2604070133), and the same certificate covers both the 5mg and 10mg lines. It is linked from each product page and listed in the Certificates of Analysis library.

A purity figure describes the sample that was assayed. It is an identity and purity record for laboratory files, not a statement about suitability for any use outside in-vitro research. For a field-by-field walk-through, see how to read a peptide COA and the Freedom Diagnostics verification checklist.

How to match a Retatrutide vial to its certificate

1. Read the compound name, fill mass (5mg or 10mg) and lot number from the vial label.
2. Open the lot certificate from the product page or the COA library and confirm the same lot (M26S012) appears on it.
3. Confirm the certificate number (#2604070133) and the issuing laboratory, then check the record on the laboratory's own verification system where it is published.
4. File the certificate with the invoice and packing slip in the reagent record.

Reading the Retatrutide certificate of analysis, field by field

The current Retatrutide certificate is a one-page Freedom Diagnostics report. Every field below is taken from the certificate itself, which is linked from both product pages and from the Certificates of Analysis library.

Purity and net peptide content are different measurements

Purity (99.858%) is a proportion: of the UV-detectable material in the chromatogram, how much is the target peptide. It does not say how much material is in a vial. Net peptide content (11.34 mg) is an absolute mass measured for the sample that was submitted, and it is affected by counter-ions, residual water and the fill of that particular vial. A complete laboratory record keeps both numbers, together with the lot, rather than quoting purity on its own. For background on why the two numbers are reported separately, see what 99% peptide purity means.

Why the certificate says "GLP1 Reta" rather than "Retatrutide"

Testing laboratories often record samples under short internal names. The link between the certificate and the product on this page is the lot number (M26S012) and the accession number (2604070133), not the product wording, and those two identifiers are what to compare against the vial label and the product page.

What the certificate does not cover

The certificate describes one sample from Lot M26S012 at the time it was tested. It does not describe other lots, it does not include sterility or endotoxin testing, and it does not say anything about use outside in-vitro research. If a future lot is tested, its certificate will carry its own lot and accession numbers.

Verifying the Retatrutide certificate at Freedom Diagnostics

The certificate states that it is searchable via FreedomDiagnosticsTesting.com. To check it at the source rather than relying on our copy:

1. Type FreedomDiagnosticsTesting.com into your browser yourself rather than following a link inside a file.
2. Search for the search code printed on the certificate, Herm2604070133, or the accession number 2604070133.
3. Compare the lot (M26S012), the purity (99.858%), the net peptide content (11.34 mg) and the dates on the laboratory's record with the PDF linked from our product page.
4. If anything does not match, treat the copy you hold as unverified and contact support@hermeticalabs.store with the details.

The full step-by-step guide is in how to verify a Freedom Diagnostics peptide COA.

Retatrutide 5mg vs 10mg: comparing the two fill sizes

Both lines are the same compound from the same lot and are covered by the same certificate. The only differences are the fill mass per vial and the price.

Example order totals in Canada

Shipping is a flat $15 CAD per order and free once the subtotal reaches $150 CAD. At current catalogue prices:

The cart and checkout always show the exact shipping charge and total before payment, and the prices on the product pages are the ones that apply.

Shipping Retatrutide within Canada

Orders ship to Canadian addresses only. Shipping is a flat $15 CAD per order and free on orders of $150 CAD or more. Typical transit is 5 to 12 business days in plain, discreet packaging. Orders placed after 12:00 PM ET or on weekends are processed the next business day. Full terms are on the shipping policy and Canada peptide shipping pages.

Storage and handling for research

Both Retatrutide lines are listed for storage at 2–8°C as lyophilized powder, kept dry and away from light. Record the receipt date and lot number on arrival. Handling after receipt follows the receiving laboratory's own protocol and safety procedures.

Receiving and storing lyophilized Retatrutide

Orders ship without cold-chain packaging. Our shipping policy states that lyophilized peptides are shelf-stable for short transit periods, and the listed 2–8°C storage applies from receipt. Keep the vial in its original labelled container so the lot stays traceable to the certificate. Hermetica does not publish solution-preparation or in-use guidance for Retatrutide; anything beyond storage of the sealed vial follows the receiving laboratory's own validated protocols and safety procedures.

What Hermetica publishes for Retatrutide, and what to ask any supplier

If a supplier cannot show the first four rows for the exact lot you would receive, the material cannot be matched to a certificate.

A complete Retatrutide documentation file

A laboratory file for one Retatrutide order is complete when it holds:

1. The certificate PDF (Freedom Diagnostics, COA #2604070133, Lot M26S012) and a note of the date you checked it at FreedomDiagnosticsTesting.com.
2. A copy of the product page as it read on the order date, showing the price, SKU, CAS number and listed storage.
3. The order confirmation or invoice and the packing slip.
4. The receiving log entry: date, condition of the package and seal, lot on the vial label and the person who received it.
5. The storage log entry: location and temperature range (2–8°C).

Glossary of the terms on this page

Tracking, damaged parcels and refunds

• Tracking. A tracking link is emailed once the order ships. Delivery estimates of 5 to 12 business days start from dispatch, not from the order date.
• Delayed parcels. If tracking has not updated for 7 business days, contact support and a trace is opened.
• Damaged or wrong items. Contact support within 7 days of delivery with photos of the package and the vial labels; a replacement or full refund is issued.
• Lost parcels. If a tracked package is confirmed lost in transit, the order is reshipped or refunded, at your choice.
• Change of mind. Returns cannot be accepted once an order has shipped.
• Refund timing. Refunds go to the original payment method within 5 to 10 business days.

Support is reached at support@hermeticalabs.store, Monday to Friday, 9am to 5pm ET, usually within one business day. Full terms are on the refund policy.

What a purity figure can and cannot tell you

A purity figure describes the share of the target peptide among the components the method detects in the assayed sample. D'Hondt et al. (2014) describe the related impurities, including deletion sequences, oxidation and hydrolysis products, that peptide purity methods are designed to separate. A high purity figure for Lot M26S012 is a record of that lot's sample, not of any other lot or supplier.

Research Use Only scope

Retatrutide is supplied only as a laboratory reagent for in-vitro research, identity verification and analytical method development. It is not a drug, supplement or cosmetic, it is not for human or veterinary use, and no usage guidance is provided. Buyers must be 21 or older.

Related Canada catalogue pages

• Retatrutide Canada — identity and lot documentation
• Retatrutide peptide Canada identity notes
• What is retatrutide? Identity and CAS notes
• Buy peptides Canada — full RUO catalogue
• Peptides Canada research catalogue
• Buy BPC-157 Canada
• Buy GHK-Cu Canada
• Buy bacteriostatic water Canada

References

1. Biosynth. Retatrutide trifluoroacetate, product FR04567: CAS 2381089-83-2, synonym LY-3437943, formula C221H342N46O68 (as TFA salt), molecular weight 4,731.33 g/mol; described as a 39-amino-acid single peptide with agonist activity at the GCGR, GIPR and GLP-1R receptors, with a C20 fatty diacid moiety at position 17. biosynth.com/p/FR04567
2. Coskun T, Urva S, Roell WC, Qu H, et al. (2022). LY3437943, a novel triple glucagon, GIP, and GLP-1 receptor agonist for glycemic control and weight loss: From discovery to clinical proof of concept. Cell Metabolism, 34(9), 1234–1247.e9. doi:10.1016/j.cmet.2022.07.013 · PubMed 35985340
3. D'Hondt M, Bracke N, Taevernier L, Gevaert B, Verbeke F, Wynendaele E, De Spiegeleer B. (2014). Related impurities in peptide medicines. Journal of Pharmaceutical and Biomedical Analysis, 101, 2–30. doi:10.1016/j.jpba.2014.06.012 · PubMed 25044089

Research Use Only. Hermetica Research Labs supplies laboratory reagents for in-vitro research. Not for human or veterinary use. Buyers must be 21 or older.