Metabolic researchIncludes human-trial data

Retatrutide (PS-101)

A research guide to Retatrutide: what the published literature covers, how it is characterized, and how to reconstitute, store, and verify it. Written as research framing, never usage guidance.

3 min read·For Research Use Only·View product, from $87.21→

Overview

Most metabolic-research compounds in this catalog are incretin-system agonists (GLP-1, GIP, and glucagon-receptor ligands) and related signaling molecules. The published literature studies them for metabolic and body-composition research endpoints. This guide describes how the compound is characterized and what that research covers. It is not usage guidance and makes no claim about outcomes from use.

A triple-agonist peptide investigated in clinical trials for metabolic and body-composition endpoints. One of the most-studied next-generation incretin candidates.

Evidence at a glance: Includes human-trial data

The cited record for this compound includes human-trial data. Each claim below still states its study type and population, so the scope of that evidence stays explicit.

Molecular identity

Molecular formula
C221H342N46O68
Molecular weight
4731.3 g/mol
CAS number
2381089-83-2
Amino acids
39
Appearance
White lyophilized powder
Purity (HPLC)
99.2%

Researched mechanism

Acts as an agonist at GLP-1, GIP, and glucagon receptors simultaneously; the added glucagon activity is the primary point of research interest versus dual agonists.

Described as a mechanism characterized in the literature, not an effect you should expect from use.

What the published research shows

  • Studied for significant body-weight change over 48 weeks in a phase 2 program.

    human trialadults with obesity, phase 2 RCT·Jastreboff et al., 2023 (representative)PubMed ↑
  • Triple-receptor pharmacology characterized in receptor-binding and preclinical models.

    mechanisticin vitro receptor assays·Coskun et al., 2022 (representative)PubMed ↑

Every citation states its study type and population, so preclinical data is never presented as human-efficacy evidence.

How it compares

VersusAttributeNote
TirzepatideReceptor targetsRetatrutide adds glucagon-receptor activity to the GLP-1/GIP profile.
SemaglutideMechanismSemaglutide is GLP-1 only; retatrutide is a triple agonist.

Retatrutide vial research model

Published study charts, concentration and supply calculations, with an interactive preparation model.

Open the full reference →

Reconstitution

Concentration math only: adding bacteriostatic water to the vial gives the resulting mg/mL shown below. This is not usage guidance.

VialBacteriostatic waterConcentration
10 mg2 mL5 mg/mL
20 mg2 mL10 mg/mL
30 mg2 mL15 mg/mL
60 mg2 mL30 mg/mL
Open the reconstitution calculator →

Storage & stability

StateTemperatureDuration
Lyophilized (unopened)-20°C24 months
Reconstituted2–8°Cup to 4 weeks

Common questions

What vial sizes are available?+

10 mg, 20 mg, and 30 mg lyophilized vials, each with a lot-specific COA.

How is it shipped?+

Lyophilized, with an insulated cold pack, tracked. Reconstitute on arrival or keep frozen.

Keep reading