During the last set of an exhaustive 16-set chest workout, subjects taking 8,000mg of L-citrulline malate were still able to increase the number of reps on their bench press by 53%.*¹

The unique combination of caffeine and L-theanine has been suggested to promote focus in subjects up to 90 minutes after ingestion.*² Caffeine has also been shown to help jack up energy for extreme training intensity.*³

L-citrullinehas been scientifically suggested to promote superior peak plasma arginine levels compared to a larger dose of L-arginine.*⁴ Quercetin has been clinically suggested to increase key markers of nitric oxide production and reduce a vasoconstricting factor.*⁵

NANO Vapor delivers a 1,667mg dose of creatine.⁶

Beta-alaninehas been clinically suggested to enhance the muscle- and strength-building process.⁷ Most other pre-workout formulas deliver a questionable dose of this ingredient hidden in a proprietary blend.

Betainehas been suggested to improve muscular endurance.⁸ Most other pre-workouts fail to deliver this powerful ingredient.

Unlike the competition, Performance Series products contain superior key ingredients in clinically dosed amounts that are fully disclosed so you know exactly what you are paying for.

Every flavor won in head-to-head third-party taste tests against the leading competitors.