The World Anti-Doping Agency's 2026 Prohibited List took effect on 1 January 2026, and the headline for athletes and supplement users is continuity: per WADA, which published the document in September 2025, most edits are new examples and clarifications, not new bans. The sections touched are S1 anabolic agents, S2 peptide hormones and growth factors, S4 hormone and metabolic modulators, and S6 stimulants.
24 News Click publishes information, not medical or legal advice. Athletes with questions about a specific substance should verify its status with their national anti-doping organization or a pharmacist before use.
What changed in S1 anabolic agents?
Per WADA's Summary of Major Modifications, published with the list in September 2025, S1 now states explicitly that esters of prohibited anabolic agents are also prohibited. Esters are chemical attachments that alter how long a compound stays in the body; the clarification closes an argument that an unlisted ester of a banned steroid was technically outside the list. No new anabolic substances were added in this section for 2026.
What changed in the other sections?
S2, covering peptide hormones, growth factors and mimetics, received revised wording and additional examples rather than new substance classes. S4, hormone and metabolic modulators, was reworded for clarity alongside the S6 stimulants section, per the same WADA summary. One widely discussed detail sits in S3, beta-2 agonists: the permitted use of inhaled salmeterol was modified in wording, but the maximum allowed dose stated by WADA — 200 micrograms per 24 hours — is unchanged from the 2025 list. National agencies including USADA and UKAD published plain-language summaries describing the 2026 list the same way: mostly examples and clarifications.
What does not change for supplement users?
The 2026 list keeps the structure familiar from prior years: substances prohibited at all times, substances prohibited in competition only, such as most stimulants, and substances prohibited in particular sports, such as beta-blockers in shooting events. For people who use dietary supplements, the practical risk documented in anti-doping case history remains the same — supplements can contain listed substances that never appeared on the label. WADA's rules hold athletes responsible for what is found in their sample regardless of intent, a principle known as strict liability. The standard protective steps, attributed in anti-doping education materials from agencies such as USADA, are checking substances against the current list through a national drug-reference online tool and choosing products certified by third-party testing programs.
The list is updated annually and the 2027 revision will follow the same cycle: approval by WADA's executive committee in the autumn, publication roughly three months before it takes effect on 1 January.
For more context, read Weigh-in reform in combat sports.
For more context, read How creatine works, and where the evidence stops.
For more context, read World Cup 2026 heat: the first ten days.