Stim head has been formulated for the Hardcore.If your all about the crazy stim pre's or simply no longer feel your current pre workout then its time for an upgrade. Packing almost 900mg of stimulants per scoop, this pre workout is not for the faint hearted, we strongly recommend starting with a half-serving to assess tolerance.Although the main focus is extreme energy we have also included ingredients to aid performance, endurance and focus.This supplement is not suitable for beginners100% transparent label.Zero proprietary blends and fully disclosed dosages of each active ingredient.Decreases muscle fatigue & exercise-induced exhaustion.Extreme energyA full serving includes highlights such as 350mg of caffeine, 150mg of cocoamaine, and 750mg of tyrosine.Beta Alanine - which plays an important role in the production of Carnosine in the body. Increasing Carnosine levels via Beta Alanine supplementation is shown to support a decrease in fatigue, coupled with an increase in workload and time to exhaustion.L-Taurine which has also been shown to help endurance and can also volumize muscle size by drawing more fluid into the muscle cells.L-Tyrosine Improves attention, focus & mood it is an amino acid that is a precursor to neurotransmitters, including Dopamine, Noradrenaline and Adrenaline. The benefit of L-Tyrosine will not only give you extra energy to push through a gruelling workout, but it will also help to increase concentration, alertness, and focus.Tamarindus Indica Extract was included for its ability to manage oxidative stress as well as its ability to move glycogen into the muscles. Along with this glycogen the body stores water with it which helps the muscle look full and engorged.