Key takeaways
- There is no single answer. Legality depends on the compound, what it is for, and who is supplying it.
- Many peptides are Schedule 4 (prescription-only) in the Poisons Standard: BPC-157 (from 1 June 2024), TB-500, CJC-1295, Ipamorelin, Melanotan II and the GLP-1 class among them. Others, such as GHK-Cu and Epithalon, are not named.
- No research peptide has an approved product on the ARTG. Supplying or advertising an unapproved therapeutic good for human use is unlawful under the Therapeutic Goods Act 1989.
- The TGA has stepped up enforcement through 2024–2026: infringement notices, seizures, and a July 2026 statement that online sellers, influencers and affiliates promoting unapproved peptides "may be held accountable".
- Research-use-only supply rests on intended use. It is not a loophole for personal use, and the TGA has said as much.
The short answer
Peptides are not illegal as a class. Many are ordinary biochemistry; insulin and oxytocin are peptides. What matters is whether a particular peptide is listed in the Poisons Standard, whether an approved product exists for it, and whether it is being supplied or used as a therapeutic good.
For the compounds people usually mean when they search this question (BPC-157, TB-500, CJC-1295, Ipamorelin, Melanotan II, retatrutide and similar), the position in 2026 is: most are Schedule 4 prescription-only substances when intended for human use; none has an approved product on the Australian Register of Therapeutic Goods (ARTG) except the GLP-1 medicines sold under brand names; and supplying or advertising them for human use without approval is unlawful. Compounds that are not named in the Poisons Standard are still unapproved therapeutic goods if they are supplied for human use.
Research-use-only supply is a different activity, governed by intended use rather than by a specific exemption. The sections below explain each part of that.
Who regulates peptides: the TGA and the Poisons Standard
The Therapeutic Goods Administration (TGA) regulates therapeutic goods in Australia under the Therapeutic Goods Act 1989. A therapeutic good is, broadly, anything represented or likely to be taken to be for therapeutic use in humans. Medicines must be entered on the ARTG before they can be lawfully supplied, and advertising therapeutic goods to the public is tightly controlled.
Scheduling is separate. The Poisons Standard (the SUSMP, currently the June 2026 instrument, F2026L00633) classifies substances into schedules that determine how they can be supplied. Schedule 4 means prescription-only. Appendix D lists substances whose possession without authority is restricted. The states and territories give the Poisons Standard legal force through their own drugs and poisons legislation, so possession and supply offences are usually state offences while advertising and supply of unapproved goods are Commonwealth offences under the Act.
A substance can be Schedule 4 with no approved product at all. That is the position for most research peptides: prescription-only in principle, with nothing a doctor could lawfully prescribe as a registered medicine.
Compound by compound: what the Poisons Standard says
The entries below are as they stand in the June 2026 Poisons Standard. "Named" means the substance (or its class) appears in Schedule 4. Dates are when the entry took effect. Check the current instrument before relying on any of them; the schedules are amended several times a year.
- BPC-157: Schedule 4 and Appendix D (possession without authority restricted) from 1 June 2024. The TGA cited 48 import referrals between July 2022 and the 2024 decision.
- TB-500 (thymosin beta-4 fragment): Schedule 4 from 1 June 2016, with an Appendix D entry.
- CJC-1295, Ipamorelin, GHRP-6, Hexarelin, AOD-9604: Schedule 4 from 1 June 2015, under the growth hormone secretagogue and GHRH class entries. Sermorelin and tesamorelin fall under the same class entries.
- Melanotan II: Schedule 4 from 2018. No product containing it is on the ARTG; the TGA states it is illegal to supply melanotan tanning products without a prescription.
- Semaglutide and tirzepatide: Schedule 4. Approved products exist (Ozempic, Wegovy, Mounjaro). Compounded and research-grade versions are not those products. From 1 October 2024, pharmacists can no longer compound GLP-1 receptor agonists.
- Retatrutide: not on the ARTG and not approved anywhere in Australia; treated as a prescription-only, unapproved substance.
- GHK-Cu, Epithalon, PT-141, Selank, Semax, KPV, MOTS-c, DSIP, Glutathione: not individually named in the Poisons Standard as at June 2026. That does not make them approved; supplied for human use they are still unapproved therapeutic goods.
What the Therapeutic Goods Act prohibits
Three things matter for peptides. First, supplying a therapeutic good that is not on the ARTG, unless an exemption applies (the Special Access Scheme and Authorised Prescriber pathways exist for doctors, not for retail). Second, advertising therapeutic goods that are not on the ARTG, or advertising prescription-only medicines to the public at all. Third, manufacturing without a licence, which the TGA has said includes "any step in the manufacturing process", such as applying a label to a blank vial or packaging product for distribution.
The penalties are substantial. The Act provides civil penalties of up to $1.82 million per breach for an individual and $18.2 million for a body corporate, and criminal penalties of up to seven years’ imprisonment for the most serious offences. In practice the TGA’s tools run from warning letters and infringement notices through product seizure and forfeiture to Federal Court proceedings.
What the TGA has actually done: 2019 to 2026
Enforcement is not theoretical. The timeline below is drawn from TGA media releases and court records.
- July 2019: the Federal Court ordered Peptide Clinics Australia Pty Ltd to pay $10 million for unlawfully advertising prescription-only peptides to the public (Secretary, Department of Health v Peptide Clinics Australia Pty Ltd [2019] FCA 1107).
- 1 June 2024: BPC-157 entered Schedule 4 and Appendix D after a run of import seizures.
- 1 October 2024: compounding of GLP-1 receptor agonists (semaglutide, tirzepatide) by pharmacists ended for dosage forms compounded on or after that date.
- April 2026: three people in Victoria were charged after a joint Australian Border Force, TGA and Victoria Police operation seized more than $2 million of performance and image-enhancing drugs, steroids and peptides.
- May 2026: a NSW individual paid 27 infringement notices totalling $101,412 for allegedly supplying Melanotan II to Australian consumers.
- July 2026: the TGA published a statement that "influencers, affiliates, online sellers and others promoting unapproved peptide products may be held accountable for unlawful advertising", that businesses involved in advertising, importing, manufacturing, supplying or exporting "can expect increased compliance action", and that it had written to social media and e-commerce platforms asking them to remove unlawful content.
- August 2026: the TGA seized more than $120,000 of peptide and steroid products linked to an influencer, and issued a safety alert on inconsistently dosed Melanotan II products.
Importing peptides into Australia
The Personal Importation Scheme allows an individual to import a limited quantity of a medicine for their own use or that of an immediate family member, but prescription-only medicines require a valid Australian prescription, the quantity is capped at roughly three months’ supply, and goods prohibited under customs legislation are excluded. A Schedule 4 peptide ordered from overseas without a prescription does not meet the scheme’s conditions and can be seized at the border; the BPC-157 scheduling decision was prompted partly by exactly those seizures.
Importing for commercial supply is a different matter again and requires the importer to hold the relevant approvals. Buying from an Australian supplier avoids the border question but not the supply question: the same Act applies to what happens after the parcel arrives.
What "research use only" means, and what it does not
Whether a product is a therapeutic good turns on what it is for. A peptide supplied for laboratory and in-vitro research, labelled as such, and not represented as being for human use, is not being supplied as a medicine. That is the basis on which research-grade peptides are sold in Australia and in most comparable jurisdictions, and it is why reputable suppliers are careful about it: no dosing guidance, no claims about effects in people, "for research purposes only, not for human consumption" on the label and the listing.
It is not a loophole. If a product is promoted, sold or bought for human use, the label does not change what it is, and the TGA’s 2026 statements make clear it will look at how products are promoted, not just how they are labelled. A buyer who intends to use a Schedule 4 peptide on themselves is outside the research framework entirely and inside the prescription-only one.
VantaLab supplies peptides for research use only. We publish a PepScan Australia certificate for every batch so that researchers can see what the vial contains, and we do not provide protocols, dosing or any advice on use in people.
What this means in practice
For a researcher or institution sourcing peptides for laboratory work, the practical obligations are to buy from a supplier who labels and sells for research use, to keep the materials within that use, to maintain records (batch numbers and certificates of analysis), and to follow whatever institutional and state requirements apply to the work.
For anyone considering a peptide for their own use, the position is simpler and less welcome: the compounds people most often ask about are prescription-only, no registered product exists for most of them, and a doctor is the only lawful route. A GP, a pharmacist or the TGA’s own guidance are the right sources, not a supplier’s website, including this one.
- Check the compound in the current Poisons Standard, not a forum or a reseller.
- Treat "research use only" as a boundary on use, not a label to look past.
- Expect prescription-only peptides ordered from overseas without a prescription to be seized.
- Keep certificates and batch records for any research material.
- Watch the TGA’s media releases: the enforcement posture changed materially in 2026.
Primary sources
Poisons Standard June 2026 (F2026L00633), Federal Register of Legislation. Therapeutic Goods Act 1989 (Cth). TGA media releases: "Unapproved peptide product promoters and suppliers are put on notice" (July 2026); "Individual issued 27 infringement notices for allegedly supplying Melanotan II" (May 2026); "TGA flexes its muscle against illegal peptides and steroids"; "TGA warning on the risks of importing unapproved peptide products". Secretary, Department of Health v Peptide Clinics Australia Pty Ltd [2019] FCA 1107. All are published at tga.gov.au and legislation.gov.au. This article was last checked against them on 27 October 2026.
Frequently asked questions
BPC-157 has been a Schedule 4 (prescription-only) substance in the Poisons Standard since 1 June 2024, with an Appendix D entry restricting possession without authority. No approved BPC-157 product exists on the ARTG, so there is no registered medicine a doctor can prescribe. It is supplied in Australia for research use only.
TB-500 (a thymosin beta-4 fragment) has been Schedule 4 since 1 June 2016 and is also listed in Appendix D. As with BPC-157, there is no approved product; it is supplied for research use only.
As at the June 2026 Poisons Standard, GHK-Cu, Epithalon, PT-141, Selank, Semax, KPV, MOTS-c and DSIP are not individually named. Not being named does not make a compound an approved medicine: supplied for human use, it is still an unapproved therapeutic good under the Therapeutic Goods Act.
Only within the Personal Importation Scheme, which requires a valid Australian prescription for prescription-only medicines and caps quantities. Schedule 4 peptides ordered from overseas without a prescription do not qualify and are liable to seizure by the Australian Border Force.
The Therapeutic Goods Act provides civil penalties of up to $1.82 million per breach for individuals and $18.2 million for companies, and criminal penalties of up to seven years’ imprisonment for serious offences. Recent TGA action has included infringement notices totalling $101,412 against one individual (May 2026) and a $10 million Federal Court penalty against a clinic for unlawful advertising (2019).
No. Research-use-only supply covers laboratory and in-vitro research. It does not authorise human use, and the TGA has said it will act against promotion of unapproved peptides regardless of labelling. For personal use, the prescription-only framework applies.
No. It is general information checked against TGA publications and the Poisons Standard as at 27 October 2026. Anyone with a specific question should consult the TGA, their state or territory health department, or a qualified lawyer.
Related
For research use only. This article is for educational and informational purposes. Research peptides are intended strictly for laboratory and in-vitro research and are not approved for human consumption. Always follow relevant regulations and the scientific literature.
