I would say this is a great product I bought for my son, who had given me great feedback, he is more focused, he doesn't feel tired, he is able to finish his tasks, however, I signed for the subscribed, in order to save money, I did save on the first purchased but paying $126.48 for one month bot...

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very nice

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Best I've tried

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I starting taking it to improve my ability to study and have noticed significant improvements. It's become a lot easier to tune out my surroundings in order to focus.

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