Anti-doping

Sport and peptides, in short

Many peptides fit well with sport, and one list tells you which: the list from the World Anti-Doping Agency (WADA). In Norway it is managed by Antidoping Norge and applies to athletes and support staff in clubs that are members of the Norwegian Olympic and Paralympic Committee and Confederation of Sports.^[1] The current list has applied since 1 January 2026.^[2]

Once you know where a peptide sits on the list, the choice is easy. Below we go through every peptide we cover. Norway also has its own national doping list, which we explain in Rules in Norway.

Peptides that fit well with sport

These are part of everyday life for many people who train.^[2]

• GHK-Cu: a common skincare ingredient, not named on the list.
• Semaglutide and tirzepatide: approved medicines your doctor can prescribe, not on the list.^[3][4]

Where research peptides sit on the list

Some of the most talked-about peptides are still being developed, and WADA places them in categories while the research goes on. Peptides in these categories are on the list, so athletes it applies to leave them out for now, both in and out of competition.^[2]

• BPC-157: named as an example in category S0, which covers substances not yet approved as a medicine anywhere.
• Retatrutide, melanotan II and KPV: not named, but they match the description of category S0.
• TB-500, thymosin beta-4, and CJC-1295 and ipamorelin: category S2, peptide hormones and growth factors.
• MOTS-c: category S4, hormone and metabolic modulators.
• Semax: not named. It is used as a medicine in Russia, and Antidoping Norge can tell you how it is assessed.

Why are research peptides on the list?

Category S0 covers every new substance that is not yet approved as a medicine anywhere, so a place there mainly tells you how far a substance has come in its development.^[2] Many of today's medicines were once at the same stage. When a peptide is approved as a medicine, it no longer fits that description, and the picture can change.

Can I use a peptide medicine and still compete?

Yes, in many cases. Semaglutide and tirzepatide are not on the 2026 list, so tell your doctor that you compete and you can decide together what suits you.^[2]

For any other medicine, Felleskatalogen shows how its active substances are assessed against the WADA list.^[1] Your doctor and Antidoping Norge can help you find the right choice.