Research use only
Retatrutide, dispatched from the UK to anywhere in Europe
Burn fat. Keep performance.
One product, one price. Every kit ships with the pen, cartridges and instructions shown below.
Retatrutide 20mg pen
Complete kit — pen, cartridges, instruction guide
£200
+ postage — next day UK when payment confirmed by midnight, signed & tracked Europe
- Ships from
- United Kingdom
- Delivers to
- All of Europe
- Payment
- Bank transfer, PayPal
20mg pen · triple-pathway compound
Everything worth knowing about the 20mg Retatrutide pen
Retatrutide sits in a newer class of investigational metabolic peptides. Rather than acting on a single hormone route, it engages three at once — which is exactly why it reads differently to the single- and dual-receptor compounds that came before it.
Our 20mg pen format holds the full research quantity in one device, so dosing increments come from the pen dial rather than from repeated reconstitution.
- Pen at a glance
- Strength20mg per pen
- FormatPre-filled dial pen + cartridges
- ClassGLP-1 / GIP / glucagon triple agonist
- AppearanceWhite powder, clear on reconstitution
- Batch purity98.6% (HPLC)
→ GLP-1 route
Appetite signalling and insulin response.
→ GIP route
Nutrient handling and metabolic regulation.
→ Glucagon route
Energy output and use of stored energy.
How the three pathways stack up
→ Appetite is dialled down
- » Fullness signals reach the brain sooner
- » Food intake typically drops without conscious effort
→ Metabolism runs more efficiently
- » Insulin-related processes are supported
- » Nutrients are put to use rather than stored
→ Energy output lifts
- » Associated with higher energy expenditure
- » Shifts how stored energy is drawn on
What research has looked at
- → Body-weight reduction over extended periods
- → Appetite and food-intake control
- → Glucose handling
- → Energy expenditure and metabolic function
- → Health complications linked to excess weight
Phase 3 work has reported reductions of roughly 28% in body weight at 80 weeks on a 12mg dose in one obesity trial. Substantial weight loss draws on fat and lean tissue alike, so protein intake and resistance training matter throughout. Nothing about the compound guarantees muscle is preserved.
Using the pen — step by step
- → Bring the pen to room temperature and check the cartridge is clear
- → Fit a fresh needle and prime until a bead appears
- → Dial the required amount on the pen collar
- → Choose a site and rotate it each time
- → Hold for a slow count after the dose completes
- → Cap, dispose of the needle, and return the pen to cold storage
Storage
- → Refrigerate at 2–8°C, unopened
- → Keep away from light and freezing
- → Do not shake the cartridge
Handling notes
- → One needle per use, never reused
- → Record batch and date for your own log
- → Supplied for laboratory research only
Take the full guide with you
Everything on this page — pen specs, the three pathways, research notes, dosing steps and storage — as a printable PDF you can open and save.
→ Download 20mg pen guide (PDF)The kit in detail
Lab test results
The Retatrutide raw material used in our 20mg pens is tested by an independent analytical laboratory. The certificate below is for a 10mg sample of that same active material — not a 10mg pen.
Chromatographic purity
98.6%
Tested sample content
10.03 mg
Batch ID
GD-20260729-RT10
Order flow
How ordering works
Three clear stages — message, pay, receive — with updates at every step.
Send your order request
Email or WhatsApp us with your country and how many pens you need. We reply the same day with the total including postage.
- → Email: orders@europeptides.co.uk
- → WhatsApp: 07516 787240 (replies within a few hours, 7 days a week)
Choose how to pay
Once you confirm, we send secure payment details for either option.
- → Bank transfer — GBP or EUR account details sent by email
- → PayPal — invoice sent to your email address for card or balance payment
Payment confirmation
Reply to our email with a screenshot or reference once paid. We confirm receipt and start packing within 24 hours.
Dispatch from the UK
Orders paid and confirmed by midnight are dispatched the next working day guaranteed. We email you the tracking number as soon as the parcel leaves.
- → UK orders: next working day delivery after dispatch
- → Europe orders: signed-for and tracked every step of the way
Delivery updates
Track your parcel in real time. If customs or delivery needs anything extra, we handle it by email until it reaches you.
FAQ
Common questions about the 20mg pen
- → How should I store the 20mg pen before use?
- Keep it refrigerated at 2–8°C, away from light and freezing. Do not shake the cartridge. If it has been exposed to heat or frozen, do not use it.
- → How do I get the pen ready before dosing?
- Let the pen sit at room temperature for 10–15 minutes, inspect that the liquid is clear and particle-free, then fit a new needle and prime until a small bead appears.
- → What comes in the kit?
- Each kit includes one 20mg Retatrutide pen, replacement cartridges, fresh needles and a printed instruction guide with dosing and storage steps.
- → How long does delivery take?
- Orders confirmed by midnight are dispatched the next working day. UK orders arrive the following working day after dispatch. European orders are sent signed-for and tracked, typically arriving within 3–7 working days depending on the country.
- → Can I pay in EUR or only GBP?
- Bank transfer details are available in both GBP and EUR. PayPal invoices can be paid in your local currency through PayPal's conversion.
- → Is the pen ready to use out of the box?
- The pen is pre-filled and ready after it reaches room temperature and is primed. Always use a new needle for each dose and rotate injection sites.
- → What should I do with used needles?
- Place used needles straight into a sharps container or a puncture-proof household container. Never recap, reuse or dispose of them in general waste.
- → How do I check the batch quality?
- Every batch is tested by an independent lab. Open the certificate of analysis in the Lab test results section above to view purity, content and batch ID.
Catalogue
More peptides coming soon
We are expanding the range. If there is a specific compound you would like us to stock, message us on WhatsApp or email and we will let you know as soon as it lands.