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In a clinical study, calcium fructopyranose borate (CFB) was shown to increase total and free testosterone within 3 hours of a single dose equivalent to just over 2 scoops of Nitraflex. This pre-training formula contains ingredients that may help maximize energy, intensity, vascularity and reactive hyperemia (pumps) during their workouts, and provide long-term support of testosterone.

In a clinical study, calcium fructopyranose borate (CFB) was shown to increase total and free testosterone within 3 hours of…

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