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The claim

“MOTS-c improves exercise performance in people.”

Not enough evidence
Evidence confidence Insufficient/Conflicting
The short answer

MOTS-c injections have not been tested for exercise performance in people.

What this means for you

MOTS-c is an untested injection with unknown risks, not a proven performance booster. It is not worth the risk for better workouts.

Your next step

Skip MOTS-c and keep your focus on regular training, sleep and food.

Who should be careful?

Safety note: MOTS-c has no safety data in people, so its risks are unknown. FDA has warned that injected peptides like MOTS-c may trigger immune reactions. MOTS-c is banned in sport at all times.

Talk to a healthcare professional if: you are thinking about injecting MOTS-c or another experimental peptide.

The evidence
Why this confidence?

No published study has given MOTS-c to people to test exercise performance. FDA's 2026 review found no human studies of administered MOTS-c at all.

The facts

MOTS-c injections have not been tested for exercise performance in people. The excitement comes from lab and animal studies and from measuring the small amount of MOTS-c the body makes on its own.

The bigger picture

MOTS-c is a small protein made by the body's mitochondria, the energy centers in cells. FDA found no studies in people of MOTS-c given as a treatment, no data on how the body handles it, and no animal safety studies. In a lab test, MOTS-c broke down quickly in human blood, and FDA said it is unclear whether an injection under the skin can even reach useful levels.

Last reviewed 2026-10-20 We update these cards as new research comes out. When the evidence changes, our verdicts change too.
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