Question 1

Can I buy peptides legally online in the UK?

Accepted Answer

It depends on the peptide. UK POMs (semaglutide, tirzepatide, liraglutide) require a UK prescription and a regulated pharmacy — typically a GPhC-registered online pharmacy. Unlicensed 'research peptides' are sold widely by online vendors; supply with human-use claims engages UK medicines regulation.

Question 2

Why does Peptide Authority not recommend specific sellers?

Accepted Answer

We are an education publisher, not a retailer or affiliate-ranking site. Ranking suppliers would conflict with our editorial position and the safety framing across the site. See /we-are-not-a-peptide-retailer and /policies/no-dosing-no-sourcing.

Question 3

What are the common online-seller red flags?

Accepted Answer

No UK pharmacy registration, prescription-only medicines sold without a UK prescription, payment in cryptocurrency or gift cards, no UK contact address, vague company information, 'research only' wording combined with human-use marketing, social-media DM ordering, prices significantly below market.

Question 4

What does 'research only' mean on an online vendor's site?

Accepted Answer

It is a marketing label, not a regulatory shield. UK rules look at how the product is presented and intended for use. Selling a peptide with human-use claims while labelling it 'research only' does not exempt the seller from medicines regulation. See /legal/research-peptides-uk-law.

Question 5

Are overseas vendors lawful for UK customers?

Accepted Answer

Importing prescription-only medicines without a UK prescription is generally unlawful. Customs may seize shipments. Unlicensed compounds carry both regulatory and safety risks. See /legal/importing-peptides-uk.

Question 6

Are 'compounding pharmacies' selling GLP-1s online lawful?

Accepted Answer

Some are operating in regulatory grey areas; some are operating unlawfully. The UK 'specials' framework is narrow and prescriber-led. 'Compounded GLP-1s' marketed on price are an MHRA enforcement priority. See /legal/compounded-peptides-uk.

Question 7

What is the difference between an online pharmacy and a research peptide vendor?

Accepted Answer

A GPhC-registered online pharmacy dispenses licensed medicines against a valid UK prescription. A research peptide vendor sells unlicensed compounds, typically labelled 'research only', with no UK pharmacy registration.

Question 8

How do I verify an online pharmacy is GPhC-registered?

Accepted Answer

Use the GPhC register at pharmacyregulation.org — search by pharmacy name or registration number. The legitimate online pharmacy display the GPhC voluntary internet pharmacy logo. See /safety-centre/check-uk-pharmacy.

Question 9

I bought from social media — what should I do?

Accepted Answer

Stop using the product. Do not inject it. Preserve packaging. Report via Action Fraud (0300 123 2040) and to your bank if you suspect a chargeback may be possible. Report to MHRA via Yellow Card if you experienced any adverse effects. See /glp-1-centre/bought-from-social-media.

Question 10

Are pre-launch supplies of investigational drugs ever lawful online?

Accepted Answer

No. Drugs in clinical trials are supplied only via the trial sponsor through registered investigators. Any online 'pre-launch' supply of an investigational drug (e.g. retatrutide, cagrilintide before licensing) is unlawful and the product identity is unverified.

Online peptide sellers — frequently asked questions

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Online peptide sellers — frequently asked questions

Related