Squeezed into this 19g maximum serving are the pump enhancers 2.5g of betaine, 8g of pure citrulline, 1.5g of agmatine, and 600mg of Vaso6. Then for mental focus, you get a solid 2g of tyrosine, a hefty one gram of lion’s mane, 600mg of alpha-gpc, Himalayan pink salt for hydration, and finally, 50mg of AstraGin to improve absorption.

As far as pump and stimulant-free pre-workouts go, Apollon Nutrition’s Bare Knuckle is packed. Many of its ingredients and dosages are much higher than the average competitor, even compared to stimulant pre-workouts, especially with that 8g of citrulline, a gram of lion’s mane, and 2g of tyrosine.