In Stock
HPLC Purity≥99%
Reviews
4.4 / 5
Trustpilot⚠ Research Use Only
Not for human consumption, veterinary use, or clinical administration. Sold exclusively to qualified laboratories and researchers for in-vitro study.
What retatrutide is and its research context
Retatrutide is a synthetic 39-amino-acid peptide with simultaneous affinity for three receptors: GLP-1, GIP and glucagon. It is built on a GIP-based backbone, carries α-aminoisobutyric acid (Aib) at position 2 and a C20 fatty-diacid side chain that extends its pharmacokinetic profile through albumin binding. The research literature lists a molecular weight of 4,731.33 Da, the formula C221H342N46O68 and CAS number 2381089-83-2.
The compound is studied in preclinical research on multi-receptor incretin and glucagon signalling, on receptor binding kinetics and on comparative pharmacology against earlier single and dual agonists. Its triple-receptor design is the reason it has become a reference compound in current metabolic-signalling research. In the research community it is often shortened to "reta".
Specification and quality
- Format: lyophilised powder in 5 mg, 10 mg and 20 mg research vials. Research kits pair one vial with 3 ml of USP-grade bacteriostatic water.
- Purity: ≥99%, verified per batch by HPLC and mass spectrometry.
- Certificate of analysis: every batch is tested by an independent third-party laboratory. The COA is published on the lab results page and matched to the lot number printed on the vial.
- Storage: keep sealed vials cool, dry and away from light. Lyophilised peptide is far more stable than reconstituted solution, so vials should stay sealed until the laboratory is ready to work with them.
The same retatrutide is also offered as the Reta Pen, a pre-filled pen with click mechanism in 10 mg, 20 mg and 30 mg, as Reta Duo two-vial packs in 10 mg and 20 mg, and as the Reta Triplet of three 10 mg research kits. Laboratories that want to calculate the concentration produced by a given volume of diluent can use the peptide reconstitution calculator.
Ordering from myPEPT in Ireland and Europe
Retatrutide ships within Europe, including Ireland, and every parcel is tracked. Customers in Ireland can pay by card, PayPal, Klarna or SEPA transfer; other European countries see their local payment options at checkout. Our support team answers questions about batches, certificates and order status before and after purchase.
Retatrutide is sold strictly for laboratory research use only and is not for human consumption. myPEPT makes no medical claims and does not give legal advice; buyers confirm at checkout that they are purchasing for research purposes and are responsible for compliance with the rules that apply to them.
Related products
HPLC + Mass-Spec Verified
Third-party tested each batch.
24-hour EU Dispatch
Cold-packed from Antwerp warehouse. Typical 2–5 day delivery.
Discreet, Secure Checkout
iDEAL, SEPA, card & crypto. No product references on invoice.
COA on Every Order
Certificate of Analysis matched to your exact lot, by email.
Frequently asked
14 questionsHow fast is delivery and which carriers do you use?
Orders placed before 16:00 CET ship the same business day from the Netherlands via DPD or PostNL. EU-wide delivery typically takes 2–5 working days, fully tracked. Every parcel ships in plain, unbranded packaging with no peptide-related markings visible.
Which payment methods do you accept?
We accept iDEAL (Netherlands), Bancontact (Belgium), Klarna pay-later, SEPA instant bank transfer, and Visa/Mastercard credit and debit cards. All payments are processed through PCI-DSS-compliant European processors. Bank transfer and card orders ship within 24 hours of payment confirmation.
How do you verify peptide purity?
Every batch is HPLC-tested to 99% purity or higher by an independent third-party laboratory, with identity confirmed by mass spectrometry. The batch-specific Certificate of Analysis is published on every product page and delivered with the order.
Are research peptides legal to buy in the Netherlands and EU?
Yes — when sold and purchased strictly for in-vitro laboratory research. Research peptides on my\PEPT.eu are not approved, marketed or intended for human or veterinary use, medical diagnosis or therapeutic application. By placing an order you confirm research-only intent and accept responsibility for compliance with local regulations.
How should research peptides be stored?
Lyophilized (freeze-dried) peptides keep up to 24 months at −20 °C in a sealed vial. Once reconstituted in bacteriostatic water, store at 2–8 °C and use within 28 days. Avoid repeated freeze-thaw cycles and direct sunlight.
What is Retatrutide as a research peptide?
Retatrutide is a synthetic tri-agonist peptide studied in laboratory research for its simultaneous activity at GIP, GLP-1, and glucagon receptors. It has a molecular weight of approximately 4,539 Da. Retatrutide has not been approved by the EMA, FDA, or any national medicines authority and is sold by my\PEPT.eu for in-vitro research use only.
How should Retatrutide be stored?
Lyophilized Retatrutide is stable for up to 24 months at −20 °C in a sealed vial, away from light and moisture. Once reconstituted in bacteriostatic water, refrigerate at 2–8 °C. This compound is intended for laboratory research only.
What does the Certificate of Analysis show for Retatrutide?
The batch-specific CoA for Retatrutide shows HPLC purity of 99 % or higher, identity confirmation by high-resolution mass spectrometry, batch number, and net peptide content. The CoA is downloadable from the product page. This compound is not for human or veterinary consumption.
What is retatrutide?
Retatrutide is a synthetic 39-amino-acid peptide that binds the GLP-1, GIP and glucagon receptors at the same time. It is studied in preclinical research on multi-receptor metabolic signalling and is supplied by myPEPT as a lyophilised research peptide for laboratory use only.
Which retatrutide formats does myPEPT offer?
Retatrutide is available as lyophilised vials of 5 mg, 10 mg and 20 mg, as research kits that add 3 ml of bacteriostatic water, as Reta Duo two-vial packs, as the Reta Triplet of three 10 mg kits, and as the Reta Pen in 10 mg, 20 mg and 30 mg.
How is the purity of retatrutide verified?
Each batch is analysed by an independent third-party laboratory using HPLC and mass spectrometry and must reach at least 99% purity. The certificate of analysis is published on our lab results page, and the lot number on the certificate matches the lot number on your vial.
How should lyophilised retatrutide be stored?
Keep sealed vials cool, dry and protected from light until the laboratory is ready to work with them. Lyophilised peptide is considerably more stable than reconstituted solution. Follow your laboratory's standard operating procedures for storage temperatures and record the opening date on the label.
Does myPEPT ship retatrutide to Ireland?
Yes. Orders ship within Europe, including Ireland, with tracking on every parcel. Customers in Ireland can pay by card, PayPal, Klarna or SEPA transfer. Our support team is available for questions about batches, certificates and order status before and after you order.
What does research use only mean for retatrutide?
It means the product is sold exclusively for laboratory research and is not for human consumption. myPEPT does not provide instructions for use in people and makes no medical claims. Buyers confirm at checkout that they purchase for research purposes and are responsible for compliance with local rules.
⚠
For research use only. This product is intended exclusively for in-vitro research and laboratory applications. Not approved for human or animal consumption, medical treatment, or therapeutic use.
For research use only. This product is intended exclusively for in-vitro research and laboratory applications. Not approved for human or animal consumption, medical treatment, or therapeutic use. Retatrutide is an investigational compound without marketing authorisation. It is listed on the WADA Prohibited List.
