For research, professional, and investigational evaluation only. No exosome product is FDA-approved for therapeutic use in humans.

Research compound guide

Buy Retatrutide Research Compound.

Retatrutide is a next-generation triple receptor agonist targeting GLP-1, GIP, and glucagon receptors — making it one of the most studied metabolic peptides in preclinical research. This guide covers sourcing retatrutide for research with documented quality standards.

What is retatrutide?

Retatrutide (LY3437943) is a synthetic peptide that acts as a triple agonist at three metabolic receptors: glucagon-like peptide-1 (GLP-1), glucose-dependent insulinotropic polypeptide (GIP), and glucagon receptors. This triple mechanism distinguishes it from both semaglutide (GLP-1 only) and tirzepatide (GLP-1 + GIP). The addition of glucagon receptor agonism introduces lipolytic and thermogenic effects that are the focus of active research.

Retatrutide supplied by B&H Bio is a research compound for laboratory evaluation only. It is not for human consumption.

Retatrutide specifications

SpecificationStandardWhy it matters
Molecular formulaC₂₂₁H₃₃₉N₅₇O₇₆Confirms molecular identity
Molecular weight~4,924.6 g/molFor molar concentration calculations
Purity≥ 99% (HPLC)Ensures research reproducibility
FormLyophilized powderStable for storage and shipping
MechanismTriple GLP-1/GIP/glucagon receptor agonistUnique triple mechanism
AppearanceWhite to off-white powderVisual quality indicator

Retatrutide vs tirzepatide vs semaglutide

ParameterRetatrutideTirzepatideSemaglutide
Receptor targetsGLP-1 + GIP + Glucagon (triple)GLP-1 + GIP (dual)GLP-1 (selective)
Molecular weight~4,924.6 g/mol~4,813.52 g/mol~4,113.58 g/mol
Glucagon activityYesNoNo
Lipolysis researchDirect glucagon-mediatedIndirectIndirect
Thermogenic effectsResearch-supportedLimitedLimited

How to evaluate retatrutide quality

  • HPLC purity ≥ 99%Quantified purity percentage by HPLC — research conclusions depend on high-purity material, especially for triple receptor studies where impurities could confound receptor selectivity data.
  • Mass spectrometry confirmationMS verifies the molecular weight (~4,924.6 g/mol), confirming correct synthesis of this complex 39-amino-acid peptide with its C20 fatty acid modification.
  • Endotoxin testingLAL assay results must be reported for any in vitro or in vivo research application.
  • Lot traceabilityEach batch linked to its COA via unique lot number for reproducibility.

Retatrutide storage and handling

Lyophilized

-20°C storage

Store at -20°C in sealed, light-protected vials. Stable for 24+ months under proper conditions.

Reconstituted

2-8°C storage

After reconstitution with bacteriostatic water, store at 2-8°C. Use within supplier-recommended timeframe.

Light sensitivity

Protect from light

Store in amber or foil-wrapped vials. Minimize light exposure during handling.

Retatrutide research applications

  • Triple receptor pharmacologyStudies comparing GLP-1, GIP, and glucagon receptor signaling — unique to retatrutide's triple mechanism.
  • Metabolic researchGlucose homeostasis, insulin secretion, and metabolic rate studies with glucagon-mediated lipolysis.
  • Body compositionEffects on fat mass reduction, lean mass preservation, and energy expenditure.
  • Lipid metabolismDirect glucagon receptor agonism enables lipolysis research not possible with GLP-1-only agonists.
  • ThermogenesisGlucagon receptor activation and brown adipose tissue research.
  • Comparative pharmacologyHead-to-head studies with semaglutide and tirzepatide across receptor panels.

Why choose B&H Bio for retatrutide

  • Batch-linked documentationEvery retatrutide lot has linked quality records available for professional review.
  • Lot traceabilityUnique identifiers reconcile each batch with its documentation.
  • Research-use-only complianceClear RUO labeling with no therapeutic claims.

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