Quick answers on UK peptide regulation, our quality standards, ordering, and aftercare. Every product we supply is for in-vitro and preclinical laboratory research use only.
Legality & regulation
Are research peptides legal in the UK?
Most research peptides — including BPC-157, TB-500, GHK-Cu, retatrutide, and tirzepatide — are not controlled substances under the UK Misuse of Drugs Act 1971. They may be lawfully supplied for laboratory research use only. Supply for human or veterinary consumption is prohibited under the Human Medicines Regulations 2012 and Medicines for Human Use Regulations.
Do you ship to the EU after Brexit?
Yes. To Ireland we offer An Post (1–3 working days) for £8.50 or DHL Priority (1–2 working days) for £31.95. To most other European countries we offer DPD (3–5 working days) for £16.00 or DHL Priority (1–2 working days) for £34.95. We are currently unable to ship to Spain or Australia. For the USA and the rest of the world we offer Royal Mail Signed for £19.95 or DHL Priority (1–2 working days) for £47.99. There is no free-shipping threshold; the delivery options available for your address are shown at checkout.
Are peptides MHRA-approved?
The peptides we supply are not authorised by the UK Medicines and Healthcare products Regulatory Agency (MHRA) for human medicinal use. They are supplied strictly for in-vitro and preclinical research.
Quality & verification
What is a Certificate of Analysis (COA)?
A COA is the third-party laboratory document confirming a peptide’s HPLC purity, mass-spectrometry identity, and bacterial endotoxin level. We supply a COA from Optima Labs (UK) with every batch.
What HPLC purity do you guarantee?
Typical HPLC purity across the catalogue is 99.0–99.7%. Each batch is tested independently and the result is published on the per-batch COA.
Who tests your peptides?
All batches are tested by Optima Labs, an independent UK-based analytical chemistry facility. We do not use in-house testing for purity claims.
Ordering & payment
Do you ship next-day in the UK?
Yes. For UK and Jersey addresses you can choose Royal Mail Special Delivery (next day) for £7.50, or Royal Mail Tracked 24 (1–2 working days) for £4.50. We offer same-day dispatch on orders placed before our daily cutoff on working days. There is no free-shipping threshold.
What payment methods do you accept?
Visa, Mastercard, American Express, Apple Pay, Google Pay, and bank transfer for orders over £500.
Storage & reconstitution
How should peptides be stored?
Lyophilised (freeze-dried) peptides should be stored at -20°C protected from light. Reconstituted peptides should be stored at 2–8°C and used within the stability window stated on the COA.
How is a peptide reconstituted?
Lyophilised peptides are reconstituted in laboratory settings with bacteriostatic water. Use the Peptides Lab UK reconstitution calculator to convert vial mg, water mL, and target concentration into mL draw and U-100 syringe units.
Returns & aftercare
Do you accept returns?
Sealed, undamaged products may be returned within 14 days of delivery for a full refund minus original shipping. See the full returns policy.
Is my data and order private?
Yes. Customer data is processed under UK GDPR. Order details are not shared with third parties beyond shipping carriers. See the privacy policy for the full data-controller statement.
All products supplied by Peptides Lab UK are for in-vitro and preclinical research use only. Not for human consumption, veterinary use, or any non-research application.
