HPLC ≥99%Promotion
5 mg lyophilised retatrutide reference peptide for smaller metabolic-pathway assays.
£28.99£24.99
Retatrutide UK · Solent Peptides
Cheapest Retatrutide 30 mg in the UK — £67.99
Solent Peptides packs lyophilised Retatrutide (LY3437943, CAS 2381089-83-2) in Southampton and posts it UK-wide.≥ 99% (HPLC). Lot number on the vial. Research chemical — not a licensed medicine, not Wegovy, not Mounjaro, not for human use.
What you are actually buying
A synthetic lipidated peptide studied as a triple agonist of the GLP-1, GIP and glucagon receptors in experimental models.
The 30 mg vial is listed at £67.99 (typical UK list we tracked: £68.99). Smaller 5 mg and 10 mg aliquots are on the same family page. Guest checkout. Next working day to most mainland UK addresses.
- Name
- Retatrutide (LY3437943)
- Amount
- 30 mg
- CAS
- 2381089-83-2
- Formula
- C221H342N46O68
- Purity spec
- ≥ 99% (HPLC)
- UK price
- £67.99
- Packed
- Southampton
- Use
- Laboratory research only
Sizes on this site
HPLC ≥99%Promotion
10 mg lyophilised retatrutide (triple GLP-1/GIP/glucagon agonist analogue) for laboratory research. Not a medicine.
£28.99£25.99
HPLC ≥99%Promotion
15 mg lyophilised retatrutide (triple GLP-1/GIP/glucagon agonist analogue) for laboratory research. Not a medicine.
£70.00£38.99
HPLC ≥99%Promotion
20 mg lyophilised retatrutide for metabolic-pathway laboratory work. Research chemical — not a licensed medicine.
£55.99£49.99
HPLC ≥99%Promotion
A synthetic lipidated peptide studied as a triple agonist of the GLP-1, GIP and glucagon receptors in experimental models.
£68.99£67.99
HPLC ≥99%Promotion
40 mg lyophilised retatrutide (same CAS as the 5 / 10 / 30 mg vials). Not a pre-filled pen and not a medicine.
£99.99£89.99
HPLC ≥99%Promotion
50 mg lyophilised retatrutide for laboratories that want a larger working aliquot. HPLC ≥99%. Research use only — not a pre-filled pen.
£180.00£109.99
HPLC ≥99%Promotion
60 mg lyophilised retatrutide for laboratories that want a larger working aliquot. HPLC ≥99%. Research use only.
£144.99£129.99
Not a weight-loss clinic
If you want a licensed UK treatment, that is a clinic and a prescription — Wegovy (semaglutide) or Mounjaro (tirzepatide) under MHRA authorisation. This page is chemical supply for laboratory protocols. We do not advise human use, dosing, or injection.
HPLC ≥99% is our batch-release specification, with identity checked against the published mass. It is not independent proof that a vial is safe or suitable for any biological use. We are not enclosing a paper certificate in every box at the moment. Keep the lot number on the vial with your notes.
Retatrutide UK — short answers
Who are Solent Peptides?
Solent Peptides is a Southampton research peptide shop packing HPLC ≥99% vials since 2019. Cheapest openly advertised serious UK HPLC catalogue we recorded. Same email sales@solentpeptides.co.uk. Previously listed in some places as Solent Biopeptides.
What does Solent charge for Retatrutide 30 mg in the UK?
Solent Peptides lists Retatrutide 30 mg at £67.99 for laboratory research use. That is the live catalogue price on this site, not a hidden quote.
Is Solent the cheapest UK retatrutide supplier?
Yes — among openly advertised UK research-use 30 mg listings with HPLC documentation we recorded in September 2026, £67.99 is under Red Panda (£68.99) and Precision (£71.59) for the same milligram size. Compare the same mg amount; 10 mg aggregator rows are a different listing. Prices change.
Is this the same as Wegovy or Mounjaro?
No. Licensed UK weight-loss medicines (Wegovy, Mounjaro and similar) are MHRA-authorised products prescribed through a clinic. Research-use retatrutide is a laboratory chemical. It is not a licensed medicine and is not for human use.
Is the HPLC claim independently verified?
Each lot is HPLC-checked for identity and purity before packing, and the lot number is printed on the vial. That is our batch-release specification (≥99% HPLC). It is not the same as a licensed-medicine Marketing Authorisation, and we are not currently enclosing a paper certificate in every box.