Retatrutide 20mg vial

Retatrutide 20mg is a 20mg lyophilized vial research peptide with 99.712% purity by HPLC (batch RE20-0121), supplied with a batch-matched COA, in stock and dispatched from the EU within 24 hours on working days.

€163.95€199.97-18%/ 20mg

Limited-time price

Content: 20mg
Purity: 99.712%
COA for this batch: Included

Number of vials

Batch RE20-0121, tested 30 Jan 2026, 99.712% purity

Size

Shipping from €10
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Free shipping on orders over €200
Dispatched within 24 hours on working days
Delivery in 1 to 4 working days across the EU and Monaco
Discreet packaging: plain outer box, no product names or branding on the outside. A neutral billing name on your card statement, no product names.

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What is Retatrutide 20mg?

Retatrutide research peptide in a 20 mg lyophilized vial for larger laboratory study batches.

Retatrutide, also referenced in the literature as LY3437943, is supplied here as a 20 mg lyophilized research vial. It is a synthetic single-molecule compound investigated across the GIP, GLP-1 and glucagon receptor systems, including receptor-signalling interactions in cellular and preclinical research. The 20 mg vial provides more material for larger study batches while preserving researcher control over the concentration prepared in the laboratory. Store the unopened vial at -20°C and record reconstitution and storage conditions consistently. For research purposes only, not for human consumption.

Specifications

Purity: 99.712%
Physical Form: Lyophilized powder
Vial Size: 20mg
Storage: -20°C
Recommended Solvent: Bacteriostatic water (0.9% benzyl alcohol)
Reconstitution: Add the solvent slowly along the inside wall of the vial and swirl gently; do not shake.
Appearance: White to off-white lyophilized powder
Shelf Life: 24 months unopened at -20°C

What does the COA for this batch show?

Retatrutide

99.712% pure

Measured 22.48 mg vs labelled 20mg.

Compound tested: Retatrutide
Label: 20mg
Measured mass: 22.48 mg
Purity: 99.712%
Batch: RE20-0121
Test date: 30 January 2026

See this batch in the lab report vault

Independent third-party analysis of the batch listed above. For research purposes only.

What is Retatrutide 20mg studied for?

Studied in the context of

Retatrutide, also referenced in the literature as LY3437943, is supplied here as a 20 mg lyophilized research vial.
It is a synthetic single-molecule compound investigated across the GIP, GLP-1 and glucagon receptor systems, including receptor-signalling interactions in cellular and preclinical research.
The 20 mg vial provides more material for larger study batches while preserving researcher control over the concentration prepared in the laboratory.
Store the unopened vial at -20°C and record reconstitution and storage conditions consistently.

How is Retatrutide 20mg stored and handled?

Storage

Store lyophilized vials at -20°C, protected from light. Once reconstituted, refrigerate at 2-8°C and use within the recommended window.

Reconstitution

Use bacteriostatic water; add slowly down the inside wall of the vial. Swirl to dissolve, never shake. See the in-house peptide calculator for concentration (mg/ml) and syringe units (IU on a U-100 syringe).

For research use only

Not for human or veterinary consumption. Handle in accordance with your institution's laboratory safety protocols.

For research purposes only. Not for human consumption.

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Reviews cover packaging, delivery and documentation. Products are for laboratory research only; reviews contain no health or use claims.

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Before you order

Every peptide batch is tested by Janoshik Analytical, an independent third-party lab. The batch number, test date and measured purity are shown on the product page, and the full report is available in the lab results section.

We ship from inside the European Union, so parcels stay within the single market and are not subject to import clearance. We have not had customs problems on EU shipments, and if a parcel is ever stopped it is covered by our Vital Guarantees reship.

It is covered by Vital Guarantees. If your parcel is not delivered within 10 working days, or is lost or stopped in transit, we reship it once, free, no questions asked.

Yes. Our compounds are freeze-dried (lyophilised), which makes them stable at ambient temperature for the duration of transit. Refrigerate on arrival, and store reconstituted material at 2-8°C.