Metabolic research
Retatrutide Pen Vial
Retatrutide triple-agonist research compound pre-reconstituted as a liquid in a pen-compatible vial. Available in 10mg, 20mg and 50mg.
Lab report 99% purity by independent HPLC Report 100016392 is published with the original scan. View report.No reconstitution supplies needed. Bought separately for a standard vial, water, needles and wipes come to £14.
Are you sure you have these? Select them. A standard vial arrives as lyophilised powder. Bacteriostatic water, insulin needles and alcohol wipes are needed to prepare it in the laboratory. Nothing is added unless you tick it.
Add £30 more for free UK delivery · free from £100
Also available as: Retatrutide Standard Vial (lyophilised)
Overview
Retatrutide Pen Vial contains the same synthetic lipidated triple-agonist research compound as our standard frozen vial, supplied pre-reconstituted in a pen-compatible cartridge format.
Available in 10mg, 20mg and 50mg sizes. Supplied as a complete disposable pen kit with sterile pen tips and alcohol wipes included. No separate pen hardware or reconstitution supplies are required for laboratory handling. Supplied strictly as a research reference material; not for human or animal consumption.
Standard vial vs pen vial
For the compound background and research areas see the Retatrutide standard vial page. The pen vial contains the same material, supplied pre-reconstituted as a complete kit.
| Format | Standard vial | Pen vial |
|---|---|---|
| Form | Lyophilised powder | Pre-reconstituted liquid |
| Volume | Powder; volume set at reconstitution | 3ml pre-filled |
| What’s included | Vial only | Disposable pen, sterile pen tips and alcohol wipes |
| Preparation | Reconstitute with bacteriostatic water | No reconstitution required |
| Storage | -20°C long-term; 2-8°C short-term | 2–8°C; do not freeze once reconstituted |
| Price | from £50 | from £70 (+£20 vs the same-strength vial) |
At a glance
- 99% purity — independently verified by HPLC
- Report covers the lyophilised material used to prepare this pen vial
- Pre-reconstituted research liquid
- UK stocked, 24–48h dispatch after payment
- Disposable pen, sterile pen tips and wipes included
Storage and handling
Supplied as a pre-reconstituted liquid in a sealed pen-compatible vial. Store at 2–8°C. Do not freeze once reconstituted. Protect from light.
Independent laboratory report
A sample of this material was submitted to Analiza Białek sp. z o.o., an independent analytical laboratory in Wrocław, Poland. We did not carry out this analysis ourselves.
| Purity result | 99% |
|---|---|
| Measured content | 16.49mg (label claim 15mg, error ±0.05mg) |
| Method | RP-HPLC — BioBasic 8 (Thermo Scientific) column, linear H₂O / acetonitrile gradient with 0.1% trifluoroacetic acid, 3µl injection |
| Laboratory | Analiza Białek sp. z o.o., Wrocław, Poland |
| Report number | 100016392 |
| Analysis dates | 2026-07-28 to 2026-07-30 |
This report describes the sample submitted to the laboratory. It covers identity, purity and content only, and is not a statement of safety, efficacy or suitability for use in humans or animals.
Specification
| Compound type | GLP-1 / GIP / glucagon triple receptor agonist |
|---|---|
| Structure | 39-residue lipidated peptide |
| Molecular formula | C221H342N46O68 |
| Molecular weight | ~4731 g/mol |
| CAS number | 2381089-83-2 |
| Synonyms | LY3437943 |
| Purity | 99% — independently verified by HPLC (report 100016392) |
| Form | Pre-reconstituted liquid |
| Storage | 2–8°C; do not freeze once reconstituted |
Questions
What is the Retatrutide Pen Vial?
The same Retatrutide GLP-1/GIP/glucagon triple-agonist research compound, supplied pre-reconstituted as a liquid in a pen-compatible vial.
How should the pen vial be stored in the laboratory?
Store at 2–8°C, protected from light, and do not freeze once reconstituted.
How is this different from the standard vial?
The standard vial is supplied as a frozen powder. This version is pre-reconstituted into solution and supplied in a vial sized for pen-style research cartridge systems.
What sizes are available?
10mg, 20mg and 50mg pen vials are available. Select your size using the dropdown before adding to basket.
Do I need a pen separately?
No. Each pen-vial order includes a pre-filled disposable research pen, sterile pen tips and alcohol wipes. No separate pen hardware or reconstitution supplies are required for laboratory handling.
Is this for research use only?
Yes. Supplied strictly for laboratory research, not for human or animal consumption.
