Tirzepatide UK — Dual Agonist Research Peptide
Tirzepatide is one of the most researched dual-agonist peptides of the modern GLP-1 era. By hitting both GLP-1 and GIP receptors simultaneously, it delivers combined receptor activity in a single compound — and Peptides UK 4U supplies it in 20mg, 40mg and 60mg vials plus pre-filled Quick Pens, dispatched same-day from the UK.
What makes Tirzepatide different?
Where Semaglutide is a single GLP-1 agonist, Tirzepatide is a dual agonist — GLP-1 plus GIP. That combined receptor profile is why it has become the reference compound for most modern metabolic peptide research, and why Tirzepatide is now more widely stocked in the UK than any other second-generation GLP-1.
Vial sizes & purity
- Tirzepatide 20mg vial — ideal for short studies or first evaluation.
- Tirzepatide 40mg vial — best value per mg, our most popular size.
- Tirzepatide 60mg vial — extended-duration research, coming into stock shortly.
- Tirzepatide Quick Pen — pre-filled, ready-to-dose, same lab-tested batch.
- Every batch is independently HPLC tested at ≥99% purity with a Certificate of Analysis published on our COA page.
Reconstitution — quick reference
Draw bacteriostatic water and add it slowly down the inside wall of the vial. Never shake. Swirl gently until fully dissolved, then refrigerate. For exact volumes based on your target dose, use our peptide reconstitution calculator — pre-configured for the 20mg, 40mg and 60mg vials we supply.
UK dispatch & discreet delivery
Every Tirzepatide order ships from our UK facility with Royal Mail 24-hour tracked delivery. Vials are packed with ice packs and insulation for temperature stability, in plain unbranded packaging. Card payments are processed by Square with 3-D Secure.
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View full shopFrequently asked questions
What is Tirzepatide?
Tirzepatide is a synthetic dual agonist peptide targeting GLP-1 and GIP receptors. It is one of the most studied compounds in the metabolic research peptide space for its combined receptor activity.
Where can I buy Tirzepatide in the UK?
Peptides UK 4U stocks Tirzepatide in 20mg, 40mg and 60mg vials plus pre-filled Quick Pens, dispatched next-day from the UK with full tracking. Every vial is independently HPLC tested.
Is Tirzepatide legal in the UK?
Tirzepatide is legal to purchase and possess for laboratory research purposes in the UK. It is not a licensed medicine and is strictly for in-vitro research use only.
What size Tirzepatide vial should I get?
We stock 20mg, 40mg and 60mg vials. The 40mg and 60mg vials give better value per mg for extended studies; the 20mg is ideal for shorter research or first-time evaluation.
How do I reconstitute Tirzepatide?
Add bacteriostatic water slowly down the side of the vial. Never shake. Once dissolved, store at 2–8°C and use within 28 days. Our peptide calculator gives exact reconstitution volumes.
Tirzepatide vial or Quick Pen — which is better?
Vials give you the widest dosing flexibility for research; Quick Pens arrive pre-filled and ready to dose, saving time on reconstitution. Both come from the same lab-tested batches.
Disclaimer: All products sold by Peptides UK 4U are for laboratory and research purposes only. They are not intended for human or animal consumption, diagnosis, treatment or prevention of any disease.