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Quantity
1
Description
Clinically Proven
For nearly two decades, 12 clinical studies—including two Gold Standard, double-blind, placebo-controlled, published trials—have proven Extreme Endurance delivers powerful results. These trials reveal less soreness, enhanc...
Reviews
4.7
2.5K ratings
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After a week or so I was really powering through my three 2 hour weight workouts as well as really increasing my four fast Walking workouts. Not tired and still had reserves in the tank
I am sold on this endurance product. Just about to start my second batch
R
Russell · 3 days ago
Loving it so far!
J
Jess · 4 days ago
Legit has made a huge difference in training for a full marathon. I’m running a minute per mile faster n my training runs. Highly recommend this product and pair with running with gels.