Retatrutide For Sale UK — Buy Retatrutide Vials (20mg, 30mg & 40mg)
Lyophilised retatrutide peptide vials, held in UK stock and shipped the same day when you order by 1pm, Monday to Friday. 20mg £89, 30mg £119 and 40mg £154 — each independently HPLC tested and confirmed by mass spectrometry with a batch-matched Certificate of Analysis.
Vials are our core format and the lowest cost per mg. called “reta”.
Retatrutide vial prices & cost per mg
| Vial | Price | Cost per mg | Status |
|---|---|---|---|
| Retatrutide 20mg | £89.00 | £4.45 | In UK stock |
| Retatrutide 30mg | £119.00 | £3.97 | In UK stock |
| Retatrutide 40mg | £154.00 | £3.85 | In UK stock |
All strengths sit on one page — buy retatrutide vials here. Full monthly cost breakdown on the retatrutide price UK page.
Buy retatrutide online in the UK — which strength?
Every strength ships from our own UK facility, so nothing crosses a border and nothing sits in customs. Every order ships the same day when ordered by 1pm, Monday to Friday, using Royal Mail tracked delivery.
- Retatrutide 20mg UK — £89.00 (£4.45/mg). The most popular starting vial.
- Retatrutide 30mg UK — £119.00 (£3.97/mg). The sweet spot on price per mg for longer research windows.
- Retatrutide 40mg UK — £154.00 (£3.85/mg). Our lowest cost per mg.
Pick a strength on the retatrutide product page .
Supplied format
- Vial — lowest cost per mg, supplied as a sealed lyophilised vial for laboratory research.
- Each vial is matched to its batch number and Certificate of Analysis where available.
Purity, COAs and UK dispatch
- Independently HPLC tested and confirmed by mass spectrometry, our batches.
- Batch Certificates of Analysis published openly.
- Held in UK stock — Same-day dispatch on orders by 1pm Monday to Friday, Royal Mail Tracked 24.
- Discreet, plain outer packaging.
Other GLP research vials
We also stock Tirzepatide vials, Semaglutide vials and Cagrilintide vials. Browse the full range in our UK peptide vials hub. Compare them in our Retatrutide vs Tirzepatide and Retatrutide vs Semaglutide guides.
Browse related products
View full shopFrequently asked questions
Where can I buy retatrutide vials in the UK?
Peptides UK 4U holds lyophilised retatrutide peptide vials in UK stock — 20mg, 30mg and 40mg. Our batches are independently HPLC tested with a batch-matched Certificate of Analysis, and orders are shipped the same day when ordered by 1pm, Monday to Friday, by Royal Mail tracked. For In Vitro Use Only — Not for Human Use.
Can I buy retatrutide online in the UK?
Yes. Retatrutide vials can be bought online in the UK for laboratory research use. Order direct from Peptides UK 4U — stock is held here in the UK, not drop-shipped from overseas, so there are no customs delays or seizures. Card checkout, tracked Royal Mail delivery and a batch-matched COA with every vial.
How much is a retatrutide vial in the UK?
Our retatrutide 20mg vial is £89.00 (£4.45 per mg), the 30mg vial is £119.00 (£3.97 per mg) and the 40mg vial is £154.00 (£3.85 per mg). Larger vials give the lowest cost per mg.
Do retatrutide vials come with a Certificate of Analysis?
Yes. Our batches are independently HPLC tested and confirmed by mass spectrometry, and the batch-matched COA is published openly on our COA page so you can verify the exact vial you received.
Is it legal to buy retatrutide vials in the UK?
Retatrutide may be purchased and possessed in the UK for laboratory research purposes only. It is not a licensed medicine and is not intended for human or animal use. For In Vitro Use Only — Not for Human Use.
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.