What is Retatrutide?

Retatrutide is a synthetic peptide supplied by Dutch Peptide Labs strictly as research material. It is classified as a GLP-1 agonist and is supplied as a lyophilised powder. Retatrutide is registered under CAS number 2381089-83-2.

Molecular properties

The molecular formula is C₂₂₁H₃₄₂N₄₆O₆₈. These values come from the certificate of analysis for batch RET 5-26061A; they were not determined by Dutch Peptide Labs. The amino-acid sequence is deliberately not listed. We publish only data we can point at a source for, and for this sequence that source is missing.

Analysis and identity

Every batch is tested independently by Kovera Labs. The certificate of analysis for this product covers batch RET 5-26061A (20 mg), certified on 28 June 2026 under report number KVR-2026-C8CC99, with a measured average purity of 99.648% across two vials (RP-HPLC, C18, detection at 214 nm). The full certificate is available on the product page. That figure is for that batch. Other batches are tested the same way and carry their own certificate.

Available variants

Retatrutide is available in two variants:

• 10 mg
• 20 mg

Both are supplied as a lyophilised powder in a sealed vial.

Storage and handling

Store at -20 °C, dry and protected from light. After reconstitution, store at 2–8 °C and use within 2–4 weeks. Repeated freezing and thawing is not advised. Handle according to your laboratory's own procedures for research materials.

Research disclaimer

Retatrutide supplied by Dutch Peptide Labs is intended solely for in vitro laboratory research and scientific purposes. This product is not intended for human or animal consumption, medicinal use, dietary application or therapeutic injection, and has not been approved by regulatory agencies such as the EMA or the FDA. Dutch Peptide Labs makes no claims as to effect, suitability or safety for any application in humans or animals. All use must take place under the supervision of qualified researchers. The seller accepts no liability for unauthorised or unlawful use of this product.