Research Peptides.
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Yes. Research peptides are legal to purchase in the United States when sold exclusively for laboratory and in-vitro research use. They are classified as Research Use Only (RUO) compounds — not drugs — and do not require a prescription. Evo Peptides sells all compounds strictly for research purposes only, not for human consumption, consistent with FDA guidelines for research reagents.

A Certificate of Analysis (COA) is an independent third-party laboratory document confirming the identity, purity, and batch number of a compound. COA-verified research peptides have been tested by an external lab — not just the manufacturer — to confirm purity at 99% or higher. Evo Peptides publishes a COA for every product batch publicly at evopeptidesus.com/coas/.

Retatrutide is a first-in-class triple hormone receptor agonist that simultaneously activates GIP, GLP-1, and glucagon receptors. It is being studied by Eli Lilly in the TRIUMPH Phase 3 program (5,800+ participants enrolled across four global trials). The TRIUMPH-4 trial (December 2025, NCT05931367, n=445) showed 28.7% average body weight reduction at 68 weeks in participants with obesity and knee osteoarthritis — exceeding analyst forecasts of 25% (BMO Capital Markets, Dec 2025). Seven additional TRIUMPH trials are ongoing. Evo Peptides offers GLP-3 RT, a retatrutide analog, exclusively for laboratory research.

Tirzepatide is a dual GIP/GLP-1 receptor agonist — described as a "twincretin" because it activates both hormone receptors simultaneously, producing synergistic metabolic effects. It was FDA-approved in May 2022 for type 2 diabetes. The SURMOUNT-1 Phase 3 trial published in the New England Journal of Medicine (2022, n=2,539) demonstrated up to 20.9% body weight reduction at 72 weeks. Unlike single-receptor GLP-1 agonists, tirzepatide's dual action results in greater insulin response and stronger weight reduction. Evo Peptides offers GLP-2 TRZ, a tirzepatide analog, for laboratory research.

Orders placed before 3:00 PM CST ship the same business day from our Wisconsin facility via USPS or UPS with full tracking. Domestic delivery typically takes 2–4 business days. Free shipping applies to all orders over $100.

Lyophilized (freeze-dried) peptides should be stored at −20°C (freezer) for long-term stability, or 2–8°C (refrigerator) for short-term use. Keep vials away from direct light, moisture, and repeated freeze-thaw cycles. Once reconstituted with bacteriostatic water, store at 2–8°C and use within 28–30 days. Each compound may have specific storage requirements — see our Research Hub for compound-specific protocols.

The global peptide therapeutics market was valued at approximately $49 billion in 2024, projected to reach $100 billion by 2034 at a CAGR of 8.1% (Global Market Insights, 2025). The U.S. market specifically was valued at $19.86 billion in 2024 (Precedence Research, Feb 2025), representing approximately 40% of North America's share. Growth is driven by GLP-1 receptor agonist adoption, metabolic disorder research, and expanded peptide synthesis technology.

Yes — free shipping on all domestic orders over $100. Most standard research orders qualify automatically. All shipments include tracking via USPS or UPS.