Nitraflex is a pro-testosterone / vasodilator with clinically-studied CFB (Calcium Fructopyranose Borate) and vasoactive compounds.*

"Reactive hyperemia" describes the increase in muscle blood flow that occurs during high-intensity resistance exercise and produces the "pump" associated with increases in muscle size. The Nitraflex Proprieceutical ("proprietary" + "nutraceutical") Formula contains ingredients suggested by in vitro, animal and clinical studies to possess properties that may help advanced athletes maximize muscle contraction strength, intensify and prolong reactive hyperemia (pumps), and promote muscle size and strength gains.

Creatine-Free: To prevent undesirable water retention, GAT scientists did not add creatine to the formula.

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High Cit:Arg Ratio: Citrulline (Cit) and arginine (Arg) are precursors to nitric oxide (NO), a potent vasodilator. However, Arg stimulates the activity of arginase, an enzyme that destroys Arg. This can lead to lower Arg and NO levels. Research suggests that supplementing with a higher ratio of Cit to Arg may support higher levels of NO by avoiding overstimulation of arginase. Cit is the body's "preferred" precursor for Arg for the purpose of synthesizing NO. Studies show that Cit increases Arg levels and markers of NO production.

Unique Ratios Of Clinically Studied Cognitive Enhancers including 1,3,7- trimethyl-1H-purine-2,6(3H,7H)-dione, 2-(Dimethylamino)ethanol and 2-Amino-4-(ethylcarbamoyl) butyric acid to support immediate energy, alertness and focus during high-intensity exercise.*

Testosterone-Elevating Complex: Calcium fructopyranose borate (CFB) is a completely non-steroidal, nature-identical compound shown in two clinical studies to increase testosterone in healthy subjects*. The average increase in total and free ("active") testosterone in a 6-week study was 56% and 29.5%, respectively. In a second study, total and free testosterone increased by average of 10.2% and 5.25%, respectively, in only 3 hours after a single dose of CFB. Considering that only roughly 2% of testosterone is normally free, these are significant increases.