Stim pre workouts are perfect for anyone looking to maximise performance in the gym. 
 
These formulas are created after years of research to provide an effective and clear focus during the session, as well as proven ingredients physical benefit when training.
 
HR LABS created ‘DEFIB’ to provide you with all the energy and focus that you need.
 
They have also included ingredients that are proven to enhance blood flow and improve your pump in the gym.
 
This is very much an ‘all in one’ pre workout formula.
 
We would recommend this for anyone that is looking to trial a new stim pre workout.