Legal status

Are peptides legal?

Answer

It depends on the peptide and the country. Of 60 peptides, 45 are authorised or registered in at least one of the 10 medicines registers read, and 15 are authorised in none of them.

Regulator10 registers, read 2026-08-31 to 2026-10-03

Each cell is what that country's own register said. Not legal advice.

BY PEPTIDE AND COUNTRY

60 peptides, most searched first

Peptide	US	EU	UK	CA	AU	CH	Authorised in
Tirzepatide	FDA-approved	Authorised	Authorised	Authorised	Registered	Authorised	10 of 10
Semaglutide	FDA-approved	Authorised	Authorised	Authorised	Registered	Authorised	10 of 10
Retatrutide	Not on the register	Not on the register	Not on the register	Not on the register	Status unknown	Not on the register	0 of 9
Glutathione	FDA-approved	Not on the register	Not on the register	Authorised	Status unknown	Not on the register	3 of 9
Oxytocin	FDA-approved	Not on the register	Authorised	Authorised	Registered	Authorised	9 of 10
Sermorelin	Not on the register	Not on the register	Not on the register	Not on the register	Status unknown	Not on the register	0 of 9
Vancomycin	FDA-approved	Not on the register	Authorised	Authorised	Registered	Authorised	9 of 10
Liraglutide	FDA-approved	Authorised	Authorised	Authorised	Registered	Authorised	10 of 10
Tesamorelin	FDA-approved	Application withdrawn	Not on the register	Authorised	Status unknown	Not on the register	2 of 9
Bacitracin	FDA-approved	Not on the register	Authorised	Authorised	Status unknown	Authorised	8 of 9
Glucagon	FDA-approved	Authorised	Authorised	Authorised	Registered	Authorised	10 of 10
Ciclosporin	FDA label, application not recorded	Authorised	Authorised	Authorised	Registered	Authorised	9 of 10
Desmopressin	FDA-approved	Not on the register	Authorised	Authorised	Registered	Authorised	9 of 10
BPC-157	Not on the register	Not on the register	Not on the register	Not on the register	Status unknown	Not on the register	0 of 9
Vasopressin	FDA-approved	Not on the register	Authorised	Authorised	Status unknown	Authorised	7 of 9
Octreotide	FDA-approved	Authorised	Authorised	Authorised	Registered	Authorised	10 of 10
Calcitonin	FDA-approved	Withdrawn	Authorised	Authorised	Registered	Authorised	8 of 10
Ipamorelin	Not on the register	Not on the register	Not on the register	Not on the register	Status unknown	Not on the register	0 of 9
Daptomycin	FDA-approved	Authorised	Authorised	Authorised	Registered	Authorised	10 of 10
MOTS-c	Not on the register	Not on the register	Not on the register	Not on the register	Status unknown	Not on the register	0 of 9
Cagrilintide	Not on the register	Not on the register	Not on the register	Not on the register	Status unknown	Not on the register	0 of 9
Dulaglutide	FDA-approved	Authorised	Authorised	Authorised	Registered	Authorised	10 of 10
Teriparatide	FDA-approved	Authorised	Authorised	Authorised	Registered	Authorised	10 of 10
GHK-Cu	Not on the register	Not on the register	Not on the register	Not on the register	Status unknown	Not on the register	0 of 9
Leuprolide	FDA-approved	Not on the register	Authorised	Authorised	Status unknown	Authorised	8 of 9
Linaclotide	FDA-approved	Authorised	Authorised	Authorised	Status unknown	Authorised	5 of 9
CJC-1295	Not on the register	Not on the register	Not on the register	Not on the register	Status unknown	Not on the register	0 of 9
DSIP	Not on the register	Not on the register	Not on the register	Not on the register	Status unknown	Not on the register	0 of 9
Exenatide	FDA-approved	Withdrawn	Authorised	Authorised	Status unknown	Not on the register	5 of 9
Lanreotide	FDA-approved	Not on the register	Authorised	Authorised	Registered	Authorised	9 of 10
TB-500	Not on the register	Not on the register	Not on the register	Not on the register	Status unknown	Not on the register	0 of 9
SS-31 (elamipretide)	Not on the register	Not on the register	Not on the register	Not on the register	Status unknown	Not on the register	0 of 9
Ganirelix	FDA-approved	Authorised	Authorised	Authorised	Registered	Authorised	10 of 10
Bremelanotide	FDA-approved	Not on the register	Not on the register	Not on the register	Status unknown	Not on the register	1 of 9
Insulin degludec	FDA-approved	Authorised	Authorised	Authorised	Registered	Authorised	10 of 10
Abaloparatide	FDA-approved	Authorised	Authorised	Not on the register	Registered	Authorised	5 of 10
Plecanatide	FDA-approved	Not on the register	Not on the register	Authorised	Status unknown	Not on the register	2 of 9
Angiotensin II	FDA-approved	Authorised	Authorised	Not on the register	Status unknown	Not on the register	3 of 9
Degarelix	FDA-approved	Authorised	Authorised	Authorised	Registered	Authorised	8 of 10
Pramlintide	FDA-approved	Not on the register	Not on the register	Not on the register	Status unknown	Not on the register	1 of 9
Carfilzomib	FDA-approved	Authorised	Authorised	Authorised	Registered	Authorised	10 of 10
Goserelin	FDA-approved	Not on the register	Authorised	Authorised	Registered	Authorised	9 of 10
Colistin	FDA-approved	Not on the register	Authorised	Authorised	Status unknown	Authorised	7 of 9
Icatibant	FDA-approved	Authorised	Authorised	Authorised	Registered	Authorised	10 of 10
Melanotan II	Not on the register	Not on the register	Not on the register	Not on the register	Status unknown	Not on the register	0 of 9
GHRP-6	Not on the register	Not on the register	Not on the register	Not on the register	Status unknown	Not on the register	0 of 9
KPV	Not on the register	Not on the register	Not on the register	Not on the register	Status unknown	Not on the register	0 of 9
Terlipressin	FDA-approved	Not on the register	Authorised	Not on the register	Registered	Authorised	8 of 10
Lixisenatide	FDA-approved	Authorised	Not on the register	Authorised	Status unknown	Authorised	8 of 9
Triptorelin	FDA-approved	Authorised	Authorised	Authorised	Registered	Authorised	10 of 10
Setmelanotide	FDA-approved	Authorised	Authorised	Authorised	Status unknown	Authorised	5 of 9
Teduglutide	FDA-approved	Authorised	Authorised	Authorised	Registered	Authorised	7 of 10
Vosoritide	FDA-approved	Authorised	Not on the register	Authorised	Registered	Authorised	7 of 10
Zilucoplan	FDA-approved	Authorised	Authorised	Authorised	Registered	Authorised	7 of 10
Difelikefalin	FDA-approved	Authorised	Authorised	Authorised	Registered	Authorised	7 of 10
Cetrorelix	FDA-approved	Authorised	Authorised	Authorised	Registered	Authorised	10 of 10
Motixafortide	FDA-approved	Not on the register	Not on the register	Not on the register	Status unknown	Not on the register	2 of 9
Afamelanotide	FDA-approved	Authorised	Authorised	Authorised	Registered	Not on the register	5 of 10
Etelcalcetide	FDA-approved	Authorised	Authorised	Not on the register	Status unknown	Authorised	7 of 9
Corticorelin	Not on the register	Not on the register	Not on the register	Not on the register	Status unknown	Not on the register	0 of 9

EU decisions also apply in Iceland, Liechtenstein and Norway. Every country read is on the world map.

AUTHORISED NOWHERE READ

15 peptides with no authorisation in any register read

Retatrutide, Sermorelin, BPC-157, Ipamorelin, MOTS-c, Cagrilintide, GHK-Cu, CJC-1295, DSIP, TB-500, SS-31 (elamipretide), Melanotan II, GHRP-6, KPV, Corticorelin.

Absent from every register read means no country among them has authorised it as a medicine. It does not say what a country's other laws allow.

FDA COMPOUNDING LIST (503A)

10 peptides on FDA's 503A bulk-substances list

1 in category 2 (may present significant safety risks in compounding); 9 nominated for compounding and the nomination withdrawn.

BPC-157 is on FDA's 503A bulk-substances list (nominated for compounding, withdrawn by the nominator).
Ipamorelin is on FDA's 503A bulk-substances list (nominated for compounding, withdrawn by the nominator).
MOTS-c is on FDA's 503A bulk-substances list (nominated for compounding, withdrawn by the nominator).
GHK-Cu is on FDA's 503A bulk-substances list (nominated for compounding, withdrawn by the nominator).
CJC-1295 is on FDA's 503A bulk-substances list (nominated for compounding, withdrawn by the nominator).
DSIP is on FDA's 503A bulk-substances list (nominated for compounding, withdrawn by the nominator).
TB-500 is on FDA's 503A bulk-substances list (nominated for compounding, withdrawn by the nominator).
Melanotan II is on FDA's 503A bulk-substances list (nominated for compounding, withdrawn by the nominator).
GHRP-6 is in category 2 of FDA's 503A list of bulk substances that may present significant safety risks in compounding, since 2023-09-29.
KPV is on FDA's 503A bulk-substances list (nominated for compounding, withdrawn by the nominator).

Regulator Read from fda.gov. A peptide not on the list is not one FDA has cleared.

QUESTIONS

Are peptides legal?

It depends on the peptide and the country. Of 60 peptides, 45 are authorised or registered in at least one of the 10 medicines registers read, and 15 are authorised in none of them.

Is Retatrutide legal?

Retatrutide is not authorised or registered in any of the 9 medicines registers read (US, EU, UK, CA, CH, BR, RS, SG, TR). Read 2026-08-31 to 2026-10-03.

Is Sermorelin legal?

Sermorelin is not authorised or registered in any of the 9 medicines registers read (US, EU, UK, CA, CH, BR, RS, SG, TR). Read 2026-08-31 to 2026-10-03.

Is BPC-157 legal?

BPC-157 is not authorised or registered in any of the 9 medicines registers read (US, EU, UK, CA, CH, BR, RS, SG, TR). Read 2026-08-31 to 2026-10-03.

Is Ipamorelin legal?

Ipamorelin is not authorised or registered in any of the 9 medicines registers read (US, EU, UK, CA, CH, BR, RS, SG, TR). Read 2026-08-31 to 2026-10-03.

Is MOTS-c legal?

MOTS-c is not authorised or registered in any of the 9 medicines registers read (US, EU, UK, CA, CH, BR, RS, SG, TR). Read 2026-08-31 to 2026-10-03.

Is Cagrilintide legal?

Cagrilintide is not authorised or registered in any of the 9 medicines registers read (US, EU, UK, CA, CH, BR, RS, SG, TR). Read 2026-08-31 to 2026-10-03.

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