Research peptides and UK advertising rules
Medicines advertising law, the CAP code and platform policies applied to research reagents, and how to read a supplier's marketing as a signal.
Advertising is where research peptide suppliers most often go wrong, and it is where the difference between a compliant supplier and a risky one is easiest to see from outside. Three regimes apply in the UK: medicines advertising law, the Advertising Standards Authority's codes, and the platform policies of Google, Meta and TikTok. This note summarises what each allows and forbids for research reagents, and how to read a supplier's marketing as a signal of their wider practice. It is general information, not legal advice. All Alphex products are for laboratory and in-vitro research only.
Medicines advertising law
Under the Human Medicines Regulations 2012 it is an offence to advertise an unlicensed medicine to the public. A research peptide advertised as a laboratory reagent is not a medicine and the rule does not bite. A research peptide advertised with claims about effects in people is being advertised as a medicine, and because it has no licence, the advertisement itself is unlawful, independent of any sale. This is the sharpest edge in the whole area: a supplier can be prosecuted for the advert alone. See the HMR and research peptides.
The ASA and CAP Code
The Committee of Advertising Practice's non-broadcast code applies to websites, social media and paid adverts. Relevant rules: advertisements must not mislead (rule 3); health claims must be substantiated and must not be made for products that are not licensed medicines (rule 12); and claims must not exploit fear or credulity. An ASA ruling against a research peptide seller typically cites medicinal claims, unsubstantiated efficacy or purity claims, and presentation aimed at consumers. ASA rulings are public and searchable, and a supplier's ruling history is a useful due-diligence check.
Platform policies
Google Ads, Meta and TikTok each restrict or prohibit advertising of unapproved substances and of products with health claims. Research chemical suppliers are typically ineligible for paid advertising on those platforms altogether, or eligible only for tightly constrained brand or informational campaigns. A supplier running conversion-optimised ads promising results in people is breaching platform policy as well as UK law, and accounts of that kind are routinely closed, which is a continuity risk for their customers.
What compliant marketing looks like
- Describes the product as a laboratory reagent: identity, purity, verification, stock, delivery.
- Educates: how peptides are tested, how to read a COA, how to store and reconstitute for assay work, what the law is.
- Describes the research literature as literature, neutrally, without adopting findings as product claims.
- Contains no before-and-after, no testimonials about personal use, no dosing, no condition names as targets.
- States research-use-only prominently and consistently.
Alphex's product pages, these research notes and any advertising follow that standard; our internal rule is that no image text or advert names a compound alongside any physiological word. See what a compliant peptide listing looks like.
Reading a supplier's marketing as a signal
A supplier who advertises effects in people is telling you three things: they are prepared to break medicines law for a sale, they may lose their platforms and their stock at any time, and their appetite for accuracy in a certificate is probably similar to their appetite for accuracy in an advert. It is one of the twelve items in the supplier checklist and one of the supplier red flags.
Frequently asked questions
Can a supplier link to published studies?
Describing and linking to literature neutrally is legitimate; using it as an implied claim ("studies show it heals X, buy here") is a medicinal presentation.
Are customer reviews advertising?
Reviews a supplier displays are part of its presentation. Reviews describing personal use are a medicinal presentation by adoption; compliant suppliers moderate them.
Where can I check ASA rulings?
The ASA publishes all rulings on its website, searchable by company name.
Sources and further reading
- CAP Code (UK non-broadcast advertising code), ASA: rules 3 (misleading advertising) and 12 (medicines and health)
- The Human Medicines Regulations 2012 (SI 2012/1916), legislation.gov.uk: the UK medicines framework; regulation 2 defines a medicinal product
- Digital Markets, Competition and Consumers Act 2024, legislation.gov.uk: unfair commercial practices including fake reviews and misleading price claims
This note is general information and is not legal advice. Alphex research peptides are supplied for laboratory and in-vitro research by qualified researchers only. They are not authorised for human or veterinary use.
Research use only. Alphex products are supplied exclusively for laboratory and in-vitro research by qualified researchers. They are not authorised for human or veterinary use, and nothing in this note is advice on any such use.
Published 22 May 2026, last reviewed 16 August 2026. Alphex reviews research notes when the testing method, the catalogue or UK guidance changes.