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“Peptide” is not one anti-doping category.
The 2026 WADA Prohibited List places different peptide-related substances in different sections according to their status and biological effects. Some are named examples; others may be captured by class wording or the non-approved-substances rule. Most relevant classes apply at all times, in and out of competition.
| Example | WADA area | Why it appears | Timing |
|---|---|---|---|
| BPC-157 | S0 non-approved substances | Named example without governmental therapeutic approval | All times |
| AOD-9604 | S2.2.3 | Growth-hormone fragment | All times |
| CJC-1295, tesamorelin | S2.2.4 | Growth-hormone-releasing factors | All times |
| Ipamorelin | S2.2.4 | Growth-hormone secretagogue | All times |
| TB-500 | S2.3 | Thymosin beta-4 derivative | All times |
| MOTS-c | S4.4.1 | AMPK activator example | All times |
Why “research use only” does not protect an athlete
Anti-doping rules concern what enters the athlete’s system, not how a seller labels a package. A research disclaimer does not establish purity, lawful supply, medical approval or anti-doping permission. Contamination and mislabelling also create risk because an athlete may not know what is present.
Named substances and class capture
The Prohibited List uses both named examples and broader class descriptions. “Including, but not limited to” means the examples are not exhaustive. A substance with a similar chemical structure or biological effect may be prohibited even if a social-media post claims it is “not on the list.”
Four checks before interpreting a peptide claim in sport.
Nickname, salt, fragment and full-length protein may not be equivalent.
Use the official current-year document, not a screenshot or forum summary.
Rules and medicine status can depend on jurisdiction and sport.
A prescription does not automatically equal permission; therapeutic-use rules may apply.
Growth-hormone pathways
WADA’s S2 section explicitly names growth-hormone fragments such as AOD-9604, growth-hormone-releasing hormone analogues such as CJC-1295 and tesamorelin, and growth-hormone secretagogues such as ipamorelin. These categories are prohibited at all times. The list also captures other substances with similar structure or biological effects.
Repair and metabolic claims
Thymosin beta-4 and derivatives such as TB-500 appear under growth factors and modulators. MOTS-c is named as an AMPK activator under hormone and metabolic modulators. BPC-157 is a named example under non-approved substances.
What this page cannot decide
This guide explains the public list; it cannot decide an individual athlete’s case, therapeutic-use exemption or sanction. Athletes should use official anti-doping channels before taking a medicine or supplement and should not rely on a vendor’s interpretation.
Common questions
Are all peptides banned?
No. “Peptide” describes a broad chemical class. WADA rules apply to specified substances, biological-effect classes and non-approved substances, not every peptide molecule.
Does a doctor’s prescription make a prohibited peptide allowed?
Not automatically. Anti-doping rules and therapeutic-use exemption requirements are separate from ordinary prescribing.
Can a supplement contain an undeclared prohibited substance?
Yes. Contamination and mislabelling are recognised risks, which is why strict-liability athletes use additional caution and official resources.
Primary source
How to cite this article
Peptides and Sport: The 2026 WADA Prohibited List Explained. Elite Peps Australia. Published 15 September 2026; updated 7 October 2026. https://elitepepsaustralia.com/peptides-sport-2026-wada-prohibited-list-explained/
Source checks: Consult the primary studies, trial records and regulator documents linked in this article for current evidence and status. Publication and update dates do not by themselves indicate an evidence review.