Is Retatrutide tested for purity?

Yes. Every lot of Retatrutide sold by DelixLabs is tested by third-party HPLC with mass spectrometry confirmation. The lot-matched COA is published on this product page so you can verify before purchase.

Where is the COA for Retatrutide?

The certificate of analysis for the current lot is linked on this product page. It includes the HPLC chromatogram, purity percentage, MS molecular weight confirmation, and lot number.

Is this product approved for human use?

No. All DelixLabs products are sold for in-vitro research use only. They are not approved by the FDA for human consumption, are not drugs, and are not intended to diagnose, treat, cure, or prevent any disease.

How is Retatrutide shipped?

DelixLabs ships domestically within the United States using tracked carriers. Orders are typically processed within one business day and arrive within 2 to 5 business days depending on destination. Cold-chain handling is used where required.

What if my order arrives damaged or off-spec?

Contact our support team within 7 days of delivery with photos and your order number. We will replace or refund any product that arrives damaged, off-spec versus its COA, or otherwise does not meet stated specifications.

Do you offer bulk or affiliate pricing on Retatrutide?

Yes. Bulk quantity discounts are reflected on this product page when viewing variations. Verified research labs and content creators can apply for our affiliate program, which offers up to 30 percent commission.

Retatrutide (GLP-3) 10/20/30 mg | >99% Purity

Name: Retatrutide
Brand: DelixLabs
SKU: LTF-GLP3-RT
Availability: InStock

Retatrutide

Research-grade Retatrutide, 10 mg per vial. Lyophilized powder, HPLC-tested at 99.030% by Janoshik Analytical — an independent third-party laboratory. Ships within 48 hours from the United States. For laboratory research use only — not for human or veterinary use.

✓>99% HPLC Purity

⚗Janoshik Verified

⚡Ships in 48 Hours

📦Discreet US Shipping

🔬

Independent COA — verify in 10 seconds

Janoshik key: QM5ZL36KYDNK · Tested 10 Dec 2025

Verify on Janoshik →

Bulk deal

Quantity	Discount	Discounted price
3 - 4	10%	-
5 - 9	15%	-
10 +	20%	-

Buy in bulk and save: 3+ vials get 10% off, 5+ vials get 15% off, 10+ vials get 20% off. Discount is applied automatically at checkout.

SKU: LTF-GLP3-RT Category: Peptides

Description

Overview

Retatrutide (LY-3437943) is a triple-receptor agonist investigated as a research analog of GIP, GLP-1, and glucagon receptor activity. It is one of the most-discussed novel research peptides in metabolic and energy-balance literature.

Independent HPLC verification

Tested by Janoshik Analytical — 99.030% purity.
Key: QM5ZL36KYDNK

Verify on Janoshik →

Research applications

GIP/GLP-1/glucagon triple-agonist research
Metabolic & energy-balance studies
Glucose-homeostasis pathway investigation
Comparative incretin-mimetic work

Specifications

Compound	Retatrutide (LY-3437943)
Molecular Weight	~4731 g/mol
Purity	≥99% (HPLC)
Available strengths	10 mg / 20 mg / 30 mg vials
Appearance	White lyophilized powder

Sequence

Modified 39-residue peptide with C20 fatty-diacid lipid moiety. Full sequence available on request to qualified institutional buyers.

Storage & handling

Store sealed lyophilized vials at -20 °C for long-term storage, or 2–8 °C for short-term. Protect from light. Handling and storage instructions for laboratory personnel are provided on the Certificate of Analysis. For laboratory research use only — not for human or veterinary use.