l carnitine l tartrate hydroxycitric acid calcium pyruvate L-Carnitine (tartrate) Supplement L-Carnitine + Calcium Pyruvate

Workout Energy and Performance Comparison Pre-Workout Supplements and Training Intensity Pre-workout supplements are commonly used before intense gym sessions because stimulant ingredients such as caffeine may temporarily support: Mental alertness Workout motivation Focus during training Perceived energy levels Power output during resistance exercise This is one reason many gym-goers use pre-workouts before: Heavy resistance training High-volume gym sessions Explosive workouts Intense training days Because of their stimulant content, some individuals experience a noticeable increase in workout intensity shortly after use

Image by senivpetro on Freepik This story was originally published on February 6, 2018.

Similar restrictions related to the age of consumers also exist in other countries

Science, 345(6198), 756-760

PubMed, Samimi, Mansooreh, et al

Other ingredients Cellulose, stearic acid (vegetable source), magnesium stearate (vegetable source), silica and vegetable coating