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AICAR

Muscle & performance · Research compound · AMPK activator (not a dietary supplement) · Source checked October 5, 2026 · Not reviewed by a medical professional

Animal & cell research only

AICAR switches on AMPK, a cellular energy sensor. In a 2008 mouse study, four weeks of AICAR raised running endurance even in mice that did not exercise.

Also called: Acadesine

Featured study

AMPK and PPARdelta agonists are exercise mimetics ↗
Cell · 2008 · PMID 18674809

Who was studied
Adult mice, sedentary and trained.
How
Treadmill-endurance experiments with pathway-specific drugs, plus muscle gene-expression analysis.
What it found
Four weeks of AICAR in sedentary mice switched on metabolic genes and increased running endurance by 44%. A PPAR-delta agonist worked together with training to increase endurance-type muscle fibers.
Limits
This is mouse research. It does not show that AICAR improves human fitness or health, and its effects in people outside hospital research use are unknown.

Safety & what remains unknown

AICAR is not a dietary supplement. It is prohibited in sport by the World Anti-Doping Agency, and human safety outside controlled research has not been established.

Talk to a clinician before starting a supplement, especially if you are pregnant, take prescription medicines or have a medical condition.

Where to find it

Search results and listings are not quality-checked or endorsed by PepsRadar. Look for third-party testing (for example USP or NSF marks) and check with a clinician about interactions.

Research listing · not for human use

AICAR (50 mg)

PSPeptides · Vendor-labeled research use only

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For research and education only. This page does not provide medical advice, diagnosis, or treatment, and is not a recommendation to use any product.