At first jittery, but after further use it gave me prolong periods of energy with enhanced cognitive functions. I am a jiu jitsu competitor and used this product before training. I’ve noticed during training that my problem solving abilities were better and was able to connect techniques and conc...

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I love the energy. I love the clarity it brings. I drink it and hop on the bike and I've had more energy!! Love it. I ordered a months worth :)

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I would like this product without the caffeine. Felt more mellow and more productive. There was an initial buzz that was disconcerting but in 2-3 hours that effect went away. I would like the caffeine free version because I don't like a jittery feeling at all. Did like feeling relaxed and not fee...

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