Every kit ships complete: case, pen and a premixed cartridge
X BioResearch Reta photo 1
Batch verified
01 / 05
Peptide kit
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Reta Kit

20mg

A triple-receptor (GIP/GLP-1/glucagon) agonist supplied as a 20mg vial. Subject of an expanding body of research literature into metabolic receptor agonism, supplied strictly for laboratory research use.

Every kit contains

  • Insulated cooler case
  • Reusable injector pen
  • One premixed cartridge
£100

Already equipped? Order the powder vial on its own

The lyophilised vial only. No case, no pen, no cartridge. Reconstitute with bacteriostatic water.

20mg powder vial£60

Running low? Order a cartridge on its own

A premixed cartridge for the pen you already have. No case, no pen, no powder vial.

20mg cartridge£65
40mg cartridge£110
1
100%
batch verified
UK
discreet dispatch
COA
on request

Supplied strictly for laboratory research use. Not for human consumption, therapeutic use, diagnosis, or treatment of any disease.

Specification summary

Compound
Reta
Strength
20mg
Format
Peptide kit: case, pen, one premixed cartridge
Verification
Batch verified, COA on request
Storage
Refrigerate, protect from light
Supply
One-time order

About this compound

Retatrutide, listed here as Reta, is a single-chain peptide that acts at three metabolic receptors at once: GIP, GLP-1 and glucagon. That third receptor is what distinguishes it from the dual agonists that came before it, and it is the reason the compound has drawn an unusually fast-growing body of research literature. Supplied as a 20mg vial, with a 40mg cartridge also available.

Research context: Subject of triple-receptor agonist research literature.

The three receptors

  • GLP-1 receptor

    The receptor targeted by the first generation of incretin research compounds, extensively studied in glucose-regulation models.

  • GIP receptor

    The second incretin receptor. Dual GIP and GLP-1 agonism is the subject of a large recent research literature.

  • Glucagon receptor

    The addition that makes this a triple agonist, examined in research into energy expenditure in metabolic models.

Precautions & notes

Supplied strictly for laboratory research use. Not for human consumption, therapeutic use, diagnosis or treatment of any disease. References to research literature describe published scientific context only and are not claims of effect or benefit. Purchasers must be 18 or over and are responsible for handling, storage and use in accordance with applicable laws and appropriate laboratory practice.

Frequently asked

How quickly do orders dispatch?

Orders confirmed before 2pm on a business day are dispatched the same day. Everything else goes out the next business day, with tracking emailed on dispatch.

What is the difference between the kit and a cartridge?

The kit is the first order for a compound: an insulated cooler case, a reusable click-calibrated injector pen and one premixed cartridge. The cartridge is the repeat order: premixed and ready to load into the pen you already have, with no case and no pen. The lyophilised powder vial is a separate item, sold on its own.

How do the supply plans work?

Supply plans run on premixed cartridges, the part of an order that repeats. Add a cartridge, choose a 3-month or 6-month plan at checkout, and the cartridges are dispatched monthly across the term with 10% or 15% off every dispatch respectively. Kits, powder vials and accessories are always one-time orders: the case and pen are yours from the first delivery, so there is nothing to send again. A one-time order is available on everything with no commitment.

How do I pay?

On Telegram. Place your order here, then send it to the team on Telegram with your order reference and they will confirm stock and send payment details for bank transfer or crypto. Your order dispatches once payment clears.

Can I get a certificate of analysis?

Yes, COAs are available for any listed batch on request. Message us on Telegram or WhatsApp with your order reference.

More in our research guides.

Research Use Only

Every compound supplied by X BioResearch is manufactured and sold strictly for laboratory and scientific research purposes. These products are not intended for human consumption, therapeutic use, diagnosis, treatment, or prevention of any disease. All research applications referenced on this site describe published research literature only and are not instructions for use.

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