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32mg
GLP-3 32 Pen
Pre-filled research pen with 32mg of GLP-3, a triple-agonist peptide targeting GIP, GLP-1, and glucagon receptors.
510 verified
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I highly recommend both the product and the team behind it. Excellent service all around!”Ibrahim Alzarooni“It's good product”Hamad Dm7“I will order again and again”Omar Alzahrani“Great experience. The service was quick and professional, with fast same-day delivery, which was really convenient. The product arrived well packaged and in good condition, and the overall quality seems excellent. Very happy with the service and would recommend.”Simonas Katysovas“Many thanks and appreciation to JAMES for fast response and super fast delivery.i will share my experience when i will order next time.”M Alketbi“Hello, I would like to thank you for the excellent quality of your products and outstanding service. I am very happy with my experience, which is why I have recommended your company to many of my friends and colleagues at work. So far, around 10 people have asked me about the peptides I use, and I directed them to your company because I truly trust the quality of your products. I wish you continued success, and I will definitely keep recommending you to anyone who asks. Thank you for your professionalism and excellent support.”Turki Nader“Amazing ”Sophie“Great Service! i'll sure be sure to reorder ”Suzi“Amazing service, high quality products. would recommend”Richard“Excellent product, packaging great, shipping was fast, company constantly updating so always knew state of order and delivery. Would recommend and have bought multiple products.”Martin Russell“Amazing experience from start to finish. The customer service was outstanding friendly, responsive, and genuinely helpful throughout the entire process. They answered all my questions and made everything smooth and easy.
I highly recommend both the product and the team behind it. Excellent service all around!”Ibrahim Alzarooni“It's good product”Hamad Dm7“I will order again and again”Omar Alzahrani“Great experience. The service was quick and professional, with fast same-day delivery, which was really convenient. The product arrived well packaged and in good condition, and the overall quality seems excellent. Very happy with the service and would recommend.”Simonas Katysovas“Many thanks and appreciation to JAMES for fast response and super fast delivery.i will share my experience when i will order next time.”M Alketbi
Specifications
A custom volume selector, with increments calibrated to this specific peptide.
2
Drag or tap to plan volumes
The volume dial is printed on the pen. Just click up to the volume you want, and the number you land on is the volume delivered.
CoA
Published per batch
2 to 8°C
Refrigerated
Pre-filled pen
Format
Janoshik
Verified
Retatrutide · LY3437943
CAS 2381089-83-2 · ~4731 g/mol
CAS 2381089-83-2 · ~4731 g/mol
Certificate of Analysis
Verified by independent & in-house laboratory testing
Janoshik Analytical
Independent third-party laboratory
99.4%
purity
Batch RET4683
Report #106564
06 Feb 2026
Body Pharm lab
Body Pharm laboratory
98.75%
purity
Batch RET3254
Report #20251011
14.06 mg/ml
Research Areas
Designed for advanced research in these areas
01
Metabolic pathway modulation studies
02
Body composition & energy expenditure research
03
Appetite signalling mechanism analysis
04
Multi-receptor agonist pharmacology
A sealed cartridge, not a compounded pen
Your GLP-3 is a sealed, factory-filled cartridge, not product drawn from a vial into a pen by hand. Here is what that means.
Fill method
Our pens
BodyPharm
Sealed at the facility
Filled and capped at fill, never opened.
Elsewhere
Mixed by hand
Vial drawn into a cartridge by hand.
Research Background
Retatrutide (LY3437943) engages three metabolic receptors at once.
GIPR
GIP receptor
GLP-1R
GLP-1 receptor
GCGR
glucagon
The glucagon (GCGR) component draws the most interest, in lab models its activation is linked to hepatic glucose output, thermogenesis, and hepatic fat changes relevant to NAFLD/MASH studies.
Research reference
Jastreboff et al. Triple-Hormone-Receptor Agonist Retatrutide for Obesity. N Engl J Med 2023;389:514-26 →
Precision Engineered
Retatrutide is an investigational triple-agonist peptide targeting GIP, GLP-1, and glucagon receptors, studied for metabolic regulation, energy expenditure, and body composition research.
✓Triple-receptor agonist, GLP-1, GIP, and glucagon pathways
✓Extended half-life for stable pharmacokinetic profiles
✓Subject of multiple ongoing clinical trials
✓Pre-filled pen for precise, repeatable delivery
✓Independently HPLC-tested, CoA published per batch
What Researchers Say
Further research reading