Peptide Laws in United Kingdom
GB · Europe · 23 peptides tracked
Are Peptides Legal in United Kingdom?
The United Kingdom regulates peptides under the Human Medicines Regulations 2012. Most research peptides (BPC-157, TB-500, GHK-Cu) remain unscheduled under the Misuse of Drugs Act 1971 and can be sold for research purposes. However, in early 2026, the MHRA initiated investigations into UK clinics promoting unregulated peptide therapies with unverified health claims. The MHRA has clarified that if clinics make medicinal claims for peptide treatments, those products are regulated as medicines and enforcement action will be taken. Purchasing peptides for personal research remains legal, but therapeutic claims and clinical administration without appropriate licensing is being actively targeted. GLP-1 agonists (semaglutide, liraglutide) require a prescription.
3
Legal9
Research Only7
Grey Area4
PrescriptionCan You Buy Peptides in United Kingdom?
3 peptide(s) are legal to buy in United Kingdom, including NAD+, Glutathione, Vitamin B12. 4 peptide(s) require a valid prescription, including Tirzepatide, Semaglutide, HGH, Liraglutide. 7 peptide(s) fall into a legal grey area: TB-500, CJC-1295, Ipamorelin, BPC-157, Melanotan II, and 2 more. These may be available for research purposes but their legality for personal use is ambiguous. 9 peptide(s) are restricted to research use only: Retatrutide, Selank, MOTS-c, GHK-Cu, AOD-9604, and 4 more.
Traveling to United Kingdom with Peptides
When traveling to United Kingdom with peptides, the legality depends on each peptide's classification. Prescription peptides (Tirzepatide, Semaglutide, HGH, Liraglutide) typically require documentation such as a prescription or doctor's letter when crossing borders. Enforcement in United Kingdom is rated as "Moderate." Always declare pharmaceutical products at customs and carry documentation of any prescriptions.
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Peptide Regulations in United Kingdom
| Peptide | Status | Rx Required | Schedule | Detail | Source |
|---|---|---|---|---|---|
| Retatrutide | Research Only | No | Not Scheduled | Investigational compound. Not MHRA approved. Available as research chemical. Not specifically targeted. | Unofficial |
| Selank | Research Only | No | Not Scheduled | Not controlled. Not psychoactive under PSA 2016. Legal for research. | Unofficial |
| Tirzepatide | Prescription | Yes | POM (Prescription Only Medicine) | MHRA-approved. Brand name: Mounjaro. Prescription required. | Official |
| MOTS-c | Research Only | No | Not Scheduled | Not controlled. Available for research purchase. | Unofficial |
| TB-500 | Grey Area | No | Not Scheduled / Unauthorized | Unauthorised medicinal product. Selling, supplying or offering to supply is prohibited by the Human Medicines Regulations 2012 reg. 46(1); possessing one for the purpose of sale or supply is prohibited by reg. 46(3). Simple personal possession is not itself an offence. Not a controlled drug: the Misuse of Drugs Act 1971 Sch. 2 Part III lists somatropin, somatrem and somatotropin (Class C) but does NOT list growth-hormone secretagogues, so the MDA route does not apply to this compound. Regulator: MHRA. | Official |
| GHK-Cu | Research Only | No | Not Scheduled | Not controlled. Legal for research. Topical skincare versions widely available. Injectable form requires research-only labelling. | Unofficial |
| AOD-9604 | Research Only | No | Not Scheduled | Not controlled. GH fragment 176-191. Legal for research. HGH itself IS Class C but fragments are not. | Unofficial |
| Semaglutide | Prescription | Yes | POM (Prescription Only Medicine) | MHRA-approved prescription medicine. Brand names: Ozempic, Wegovy. Prescription required. Compounding restricted. | Official |
| CJC-1295 | Grey Area | No | Not Scheduled / Unauthorized | Unauthorised medicinal product. Selling, supplying or offering to supply is prohibited by the Human Medicines Regulations 2012 reg. 46(1); possessing one for the purpose of sale or supply is prohibited by reg. 46(3). Simple personal possession is not itself an offence. Not a controlled drug: the Misuse of Drugs Act 1971 Sch. 2 Part III lists somatropin, somatrem and somatotropin (Class C) but does NOT list growth-hormone secretagogues, so the MDA route does not apply to this compound. Regulator: MHRA. | Official |
| Semax | Research Only | No | Not Scheduled | Not controlled. Not psychoactive under PSA 2016. Legal for research. | Unofficial |
| Ipamorelin | Grey Area | No | Not Scheduled / Unauthorized | Unauthorised medicinal product. Selling, supplying or offering to supply is prohibited by the Human Medicines Regulations 2012 reg. 46(1); possessing one for the purpose of sale or supply is prohibited by reg. 46(3). Simple personal possession is not itself an offence. Not a controlled drug: the Misuse of Drugs Act 1971 Sch. 2 Part III lists somatropin, somatrem and somatotropin (Class C) but does NOT list growth-hormone secretagogues, so the MDA route does not apply to this compound. Regulator: MHRA. | Official |
| NAD+ | Legal | No | Not Scheduled | NAD+ supplements (NMN/NR) sold freely. IV infusions available at wellness clinics. No specific restrictions. | Unofficial |
| BPC-157 | Grey Area | No | Not Scheduled / Unauthorized | Unauthorised medicinal product. Selling, supplying or offering to supply is prohibited by the Human Medicines Regulations 2012 reg. 46(1); possessing one for the purpose of sale or supply is prohibited by reg. 46(3). Simple personal possession is not itself an offence. Not a controlled drug: the Misuse of Drugs Act 1971 Sch. 2 Part III lists somatropin, somatrem and somatotropin (Class C) but does NOT list growth-hormone secretagogues, so the MDA route does not apply to this compound. Regulator: MHRA. | Official |
| DSIP | Research Only | No | Not Scheduled | Not a controlled substance under Misuse of Drugs Act 1971. No MHRA marketing authorisation. Legal to buy/possess for research. Illegal to sell for human consumption. | Official |
| Epithalon | Research Only | No | Not Scheduled | Not a controlled substance. No MHRA marketing authorisation. Legal to buy for research. No psychoactive effects under PSA 2016. | Unsourced |
| Glutathione | Legal | No | Supplement | Oral form: Sold as food supplement under UK Food Supplements regulations. Injectable form: Falls into regulatory grey area; would require MHRA authorisation if therapeutic claims are made. | Unsourced |
| HGH | Prescription | Yes | Class C / Schedule 4 Part 2 | Class C controlled substance under Misuse of Drugs Act 1971. Schedule 4 Part 2. Illegal to supply without prescription. Available as Genotropin, Norditropin, Omnitrope via NHS. | Official |
| KPV | Research Only | No | Not Scheduled | Not a controlled substance. No MHRA marketing authorisation. Legal for research. No psychoactive effects under PSA 2016. | Unsourced |
| Liraglutide | Prescription | Yes | POM (Prescription Only Medicine) | MHRA-licensed. Victoza and Saxenda approved. Prescription-only medicine. NHS availability varies for weight management. NICE recommends within specialist Tier 3 services. | Unsourced |
| Melanotan II | Grey Area | No | Unauthorized Medicine | No MHRA marketing authorisation. MHRA has shut down 72+ websites selling Melanotan, suspended 100+ websites. 18 adverse event reports detailing 74 reactions. Classified as medicinal product under Human Medicines Regulations 2012. | Official |
| PT-141 | Grey Area | No | Not Scheduled / Unauthorized | Not licensed by MHRA. No approved pharmaceutical product. Available only through grey-market peptide suppliers. | Unsourced |
| MK-677 | Grey Area | No | Not Scheduled / Unauthorized | Unauthorised medicinal product. Selling, supplying or offering to supply is prohibited by the Human Medicines Regulations 2012 reg. 46(1); possessing one for the purpose of sale or supply is prohibited by reg. 46(3). Simple personal possession is not itself an offence. Not a controlled drug: the Misuse of Drugs Act 1971 Sch. 2 Part III lists somatropin, somatrem and somatotropin (Class C) but does NOT list growth-hormone secretagogues, so the MDA route does not apply to this compound. Regulator: MHRA. | Official |
| Vitamin B12 | Legal | No | Supplement | Oral: OTC food supplement or GSL medicine. Injectable (hydroxocobalamin): Prescription Only Medicine (POM). Remote prescribing for injectable B12 banned as of June 2025. | Unsourced |
About the sources on this page
Entries marked Official cite a government regulator, legislation or an official gazette. Entries marked Unofficial rest on sources that are not authoritative — which may include commercial sellers, medicine-import services or independent websites. Some entries currently carry no source at all.
We show these entries rather than hiding them, but they should not be relied on. Nothing on this site is legal advice. Verify against the national regulator before acting, and if you can point us at a better source please submit an update.
Data is researcher-verified but not legal advice. Always consult local regulations before purchasing, importing, or traveling with peptides. Last verified: 2026-02-28.