RetatrutideSempic (Semaglutide)Tirzeparo (Tirzepatide)
SlimPens – Your Trusted Source for Research Peptide Pens in the UK
SlimPens.co.uk offers a curated range of research-only injectable peptides including Retatrutide, Sempic (Semaglutide), and Tirzeparo (Tirzepatide). Our pre-filled pens are designed for ease, sterility, and consistency in scientific studies.
We cater exclusively to laboratories, institutions, and independent researchers. All products are filled in cleanroom environments, batch-tested, labelled, and cold-shipped from the UK.
Why Researchers Choose SlimPens:
- Research-only compliant peptides
- Pre-dosed, sealed injection pens
- UK & Ireland next-day delivery
- Batch/expiry tracking for every product
- Educational blog and lab-use support
We are not here to sell you anything, and you won’t find hard-sell tactics here. You cannot buy products directly from this website, and no one will prompt you to make a purchase. Our goal is to provide valuable information on weight loss peptides. If you’re interested, we’ll connect you with someone who can guide you further.
We’re proud to offer access to information on research products Semaglutide, Tirzepatide, Cagrilinitide, and the revolutionary Retatrutide, along with other peptides that support fat burning, metabolism, and overall health.
At GLP JOURNEY, we don’t just provide products – we offer real support. Having been through the same struggles, we walk alongside you and provide tailored guidance for everyone.
Every journey starts with the first step. If you’re ready to take control of your health, we’re here to guide you every step of the way.
Our Essential Products
Retatrutide Pen
(10mg, 20mg, 30mg, 50mg)
Unlock the Future of Metabolic Research. Introducing the Retatrutide 10mg Pen—a research-grade, triple-receptor agonist peptide designed for advanced metabolic studies.
Sempic Pen
(0.5mg, 1mg, 2mg)
Elevate Your Metabolic Studies. Introducing the Retatrutide 20mg Pen—a research-grade, triple-receptor agonist peptide designed for advanced metabolic studies.
Tirzeparo Pen
(2.5mg, 5mg, 7.5mg, 10mg, 12.5mg, 15mg)
Achieve New Heights in Metabolic Exploration.
Introducing the Retatrutide 30mg Pen—a research-grade, triple-receptor agonist peptide designed for advanced metabolic studies.
GLP Journey
4.8
44 Reviews
GLPjourney
Welcoming, informative, trustworthy. Always go the extra mile to help me reach my goal. Very conscientious
Great company to deal with
Great company to deal with. Looked after very well. Loved the products and level of service.
Amazing Customer service and all round…
Amazing Customer service and all round great experience