Description
Retatrutide 20mg — Triple Agonist (GLP-1/GIP/Glucagon) Research Peptide
Retatrutide is a synthetic triple receptor agonist activating GLP-1, GIP, and glucagon receptors simultaneously, studied as a next-generation metabolic research compound. Peptalix Labs supplies Retatrutide 20mg at a verified purity of 99.56%, tested via a full QC panel by ILS Laboratories (ISO/IEC 17025 accredited, San Diego). GMP-sourced, lyophilised. Fast USA same-day shipping with delivery to Canada, Australia, the UK and Europe.
Certificate of Analysis
This product is independently tested by ILS Laboratories. COA #COA-2026-QMH4LR confirmed 99.56% purity with net peptide content of 21.06 mg (Lot 124-03-SM). The full panel includes a negative fentanyl screen, sterility testing (No Growth via PCR), and heavy metals analysis (all not detected). Independently verifiable at portal.ils-lab.com, Access Code UYKQEWTT.
Research Background
Retatrutide research examines combined GLP-1, GIP, and glucagon receptor agonism — a triple-pathway approach studied in published Phase 2 clinical research. Frequently studied alongside Semaglutide and Tirzepatide for comparative incretin-pathway research.
Product Specifications
- Product
- Retatrutide 20mg
- Peptide Class
- Triple Agonist (GLP-1/GIP/Glucagon Receptor)
- Appearance
- Lyophilised, Good
- Purity
- 99.56% (Full QC Panel — HPLC)
- Net Peptide Content
- 21.06 mg per vial
- Lot Number
- 124-03-SM
- COA Number
- COA-2026-QMH4LR
- Testing Lab
- ILS Laboratories, San Diego (ISO/IEC 17025 Accredited)
- Fentanyl Screen
- Not Detected (Pass)
- Sterility (PCR)
- No Growth (Pass)
- Heavy Metals
- Arsenic, Cadmium, Chromium, Mercury, Lead — All Not Detected (Pass)
- Storage
- Lyophilised: -20C. Reconstituted: 2-8C, use within 28 days
- Shipping
- USA same-day. Canada, Australia, UK, Europe
- Research Use
- In-vitro laboratory research only
Reconstitution Guide
Reconstitute using sterile bacteriostatic water. Inject slowly down the inner wall of the vial and gently swirl until dissolved. Never shake. Store reconstituted solution at 2-8C and use within 28 days.
Shipping
Same-day USA dispatch before daily cut-off Monday to Friday. International delivery to Canada, Australia, UK and Europe in 5-12 business days.
Related Weight Loss Research Compounds
- Semaglutide 20mg — GLP-1 Receptor Agonist
- Tirzepatide 30mg — Dual GLP-1/GIP Agonist
- Retatrutide 10mg — Triple Agonist Research Peptide
- Retatrutide 30mg — Triple Agonist Research Peptide
- AOD-9604 5mg — Fat-Metabolism Research Fragment
Scientific References
- Jastreboff et al. — Retatrutide triple-agonist research (PubMed)
- NIH NLM — Retatrutide triple-receptor agonism research
- ClinicalTrials.gov — Search: Retatrutide Research
Research Use Only. Not provided for clinical use, human consumption, or veterinary application outside of laboratory research settings.
Frequently Asked Questions
What is Retatrutide peptide?
Retatrutide is a synthetic triple receptor agonist activating GLP-1, GIP, and glucagon receptors simultaneously, studied as a next-generation metabolic research compound. Peptalix Labs supplies Retatrutide 20mg at 99.56% purity, verified via a full QC panel by ILS Laboratories.
What purity is Peptalix Labs Retatrutide 20mg?
Independently tested at 99.56% purity by ILS Laboratories (San Diego, ISO/IEC 17025 accredited) via a full QC panel. Net peptide content 21.06 mg per vial, Lot 124-03-SM, COA #COA-2026-QMH4LR.
What makes Retatrutide different from Semaglutide and Tirzepatide?
Retatrutide activates three receptors (GLP-1, GIP, and glucagon) compared to Semaglutide’s single GLP-1 agonism and Tirzepatide’s dual GLP-1/GIP agonism. The added glucagon receptor activity is studied for its distinct metabolic research profile.
Which lab tested this product, and is the COA verifiable?
ILS Laboratories, an ISO/IEC 17025 accredited facility in San Diego, CA. The COA can be independently verified at portal.ils-lab.com using Access Code UYKQEWTT.
Does this COA include sterility and heavy metals testing?
Yes. The full QC panel includes heavy metals analysis (all Not Detected), sterility testing via PCR (No Growth), and a negative fentanyl screen.
How is Retatrutide peptide stored?
Supplied as lyophilised powder. Store the sealed vial at -20C prior to reconstitution. Once reconstituted with bacteriostatic water, store at 2-8C and use within 28 days.
How do I reconstitute Retatrutide 20mg?
Draw the desired volume of sterile bacteriostatic water into a fresh syringe and inject slowly down the inner wall of the vial. Gently swirl until fully dissolved. Never shake.
What research has been published on Retatrutide?
Retatrutide has been studied in triple-receptor agonism research examining combined GLP-1, GIP, and glucagon receptor activation in metabolic regulation models, including published Phase 2 clinical research.
Can I buy Retatrutide 20mg online in the USA?
Yes. Peptalix Labs offers Retatrutide 20mg for purchase online for qualified USA researchers, with full QC panel COA verification.
Does Peptalix Labs ship Retatrutide internationally?
Yes, to Canada, Australia, the United Kingdom and most of Europe, with tracked delivery in 5-12 business days.
Is Retatrutide peptide legal to buy in the USA?
Yes, as a research chemical for qualified researchers conducting in-vitro laboratory studies. Sold strictly for research purposes, not for clinical or human use.
What is the appearance of Retatrutide 20mg?
Lyophilised powder, rated ‘Good’ appearance on the ILS Laboratories COA.
Which lab verified Peptalix Labs Retatrutide purity?
ILS Laboratories, San Diego, an ISO/IEC 17025 accredited facility. COA #COA-2026-QMH4LR, Lab Director Dr. Greg Kalyuzhny.
Is Retatrutide FDA-approved?
No. Unlike Semaglutide and Tirzepatide, Retatrutide is not yet an FDA-approved active pharmaceutical ingredient. It remains an investigational compound studied in ongoing clinical trials.
What other GLP-1 family research peptides does Peptalix Labs offer?
Our weight-loss research category includes Semaglutide, both Tirzepatide dosages, the other Retatrutide dosages, and AOD-9604 — all COA-verified and GMP-sourced.






