GLP-3 (Reta)

Retatrutide is a research-grade GLP-1 / GIP / glucagon triple agonist research peptide available at For Peptides with ~99% HPLC purity, independent 3rd-party lab testing, and >90% fill volume. Every vial ships from our USA facility and is intended strictly for in vitro laboratory research — not for human or veterinary use. Explore other metabolic research peptides in our metabolic research collection.

Retatrutide is a triple agonist targeting the GIP, GLP-1, and glucagon receptors. In preclinical research this triple-receptor activity has been investigated for its effects on energy expenditure, insulin sensitivity, hepatic glucose output, and adipose tissue lipolysis.

Retatrutide is studied in metabolic-disease research models for its unique combination of incretin signaling and glucagon-driven energy expenditure.

Technical Specifications

• Receptor Targets: GIP + GLP-1 + Glucagon (triple agonist)
• Appearance: White lyophilized powder
• Amount per Vial: See variants
• Format: Lyophilized research peptide

Handling & Storage

• Lyophilized powder: Store at -20°C for long-term stability.
• After reconstitution: Store at 2-8°C and use within 30 days.
• Reconstitution: Use bacteriostatic water or sterile water for injection.
• Avoid: Repeated freeze-thaw cycles and direct light exposure.

Quality & Testing

• Purity: ~99% by HPLC
• Testing: Third-party independent laboratory analysis
• Fill Volume: >90% guaranteed
• Shipping: Cold-chain compatible, ships from USA

Frequently Asked Questions

What makes retatrutide unique?
It is one of the first triple agonists combining GIP, GLP-1, and glucagon receptor activity in a single molecule.

Purity?
~99% HPLC, third-party verified.

Storage?
Lyophilized: -20°C. Reconstituted: 2-8°C, 30 days.

Why Researchers Choose For Peptides Retatrutide

• ~99% HPLC purity verified via high-performance liquid chromatography on every batch
• Independent 3rd-party lab testing with Certificate of Analysis (COA) available on request
• >90% fill volume guarantee — you get the peptide mass you paid for
• Ships from USA — fast domestic fulfillment, no international customs delays
• Real scientific support — questions answered by researchers, not a call center

Browse related research peptides in our metabolic research collection, or view all our best-selling research peptides. For questions about Retatrutide purity, COAs, or bulk research orders, call 1-877-336-7737 or start a live chat.

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