Research Peptides · HPLC-Verified
Retatrutide for Sale — Research-Grade 10mg & 20mg Vials
Peptide Logix supplies Retatrutide for sale to U.S. laboratories at 99%+ HPLC-verified purity. Every lyophilized vial ships with a Certificate of Analysis, mass-spec confirmation, and cold-chain protection — the most studied triple GLP-1/GIP/glucagon agonist in modern metabolic research.


Research-use only · Not for human consumption
Clinical & Preclinical Research
Phase 2 — NEJM 2023
48-week trial reported up to 24.2% mean body-weight reduction at the highest dose — the largest effect size of any single agent published in obesity trials to date.
Triple Agonism Mechanism
Retatrutide activates GLP-1, GIP, and glucagon receptors simultaneously, combining appetite suppression with increased energy expenditure.
Hepatic Fat Reduction
Phase 2 MASLD sub-analysis showed >80% liver-fat reduction in a majority of subjects at the 8mg and 12mg arms.
Reconstitution
Standard protocol: add 1–2 mL of bacteriostatic water to a 10mg vial. • 1 mL BAC → 10 mg/mL (100 mcg per 0.01 mL) • 2 mL BAC → 5 mg/mL (50 mcg per 0.01 mL) Store reconstituted vials at 2–8°C and use within 28 days.
Open dosing calculator →Research Dosing Protocols
Reported research dosing in published literature ranges from 0.5 mg to 12 mg weekly, titrated over 4–8 week intervals. Use the Peptide Logix calculator to convert your target mg dose to syringe units based on your reconstitution volume.
What Researchers Are Saying
"Retatrutide from Peptide Logix consistently mass-specs at >99%. The CoA documentation is the cleanest I've worked with."
— Dr. M. Hoffman, Endocrinology Research Lab, TX
"Lyophilization is tight, no clumping, full resuspension in BAC water. Shipping arrived cold every time across four orders."
— K. Patel, MSc, Independent Bench Researcher
"Triple agonist data tracked with published literature in our in-vitro assays. Reliable supplier — I keep coming back."
— Dr. J. Reyes, Metabolic Research Group, FL
Frequently Asked Questions
Is Retatrutide for sale at Peptide Logix research grade?+
Yes. Every vial of Retatrutide is HPLC-verified at 99%+ purity and ships with a downloadable Certificate of Analysis. Strictly for in-vitro research — not for human consumption.
What strengths of Retatrutide do you sell?+
We currently stock Retatrutide 10mg and Retatrutide 20mg lyophilized vials, sealed under nitrogen for long-term stability.
How fast does Retatrutide ship in the U.S.?+
Orders placed before 2pm CT ship same-day via cold-chain carriers. Most U.S. labs receive shipments in 2–3 business days.
How is Retatrutide reconstituted for research?+
Most protocols reconstitute a 10mg vial with 1–2 mL of bacteriostatic water. Use our dosing calculator to dial in the exact mg-per-unit value for your study.
How does Retatrutide compare to Tirzepatide and Semaglutide?+
Retatrutide is a triple agonist targeting GLP-1, GIP, and glucagon receptors, while Tirzepatide is a dual agonist (GLP-1/GIP) and Semaglutide a single GLP-1 agonist. Triple agonism is associated with the highest body-mass reductions reported across phase 2 trials.
Do I need a license to purchase Retatrutide?+
Customers must certify the material is for bona fide laboratory research only. No prescription required, but products are sold under research-use-only terms.
Order Retatrutide — Research Grade
Every vial ships with a downloadable HPLC Certificate of Analysis. Inquire today for pricing and current inventory.
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