100% All Natural Pre Workout Powder. Pulse is a naturally sweetened and flavored pre workout supplement that contains large and effective doses of the best science-backed ingredients, including those found in many nitric oxide supplements: L citrulline malate, betaine, beta alanine and alpha gpc.boosts Energy andamp Focus. Mix a serving of this pre-workout for women and men with water, swig it down, and get fired up and zeroed in and crush your workout . . . and without the jitters, upset stomach, or post-workout crash.enhances Strength andamp Endurance. This all natural pre-workout powder is a nitric oxide booster and helps you push more weight and reps, get bigger and better pumps, and gain more muscle and strength.