TF7 LABS Virus is a caffeine-free pre-workout focused on giving you better muscle pumps when you workout. It is quite a bit different from the TF7's other Poison pre-workout, which aims to deliver other benefits in the gym such as improved energy and mental focus. TF7 has given Virus a new and exciting combination of ingredients with over 10g of active ingredients; all included to help with pumps. Virus features tested pump pre-workout ingredients such as 3.5g of citrulline malate, 2g of betaine, a gram each of glycerol, glycine, beetroot, 800mg of tyrosine, and half a gram of taurine. TF7 Labs has also added carbohydrates into the mix as well with 3g of the high-quality carb highly branched cyclic dextrin (HBCD). Virus is a no-nonsense, effective to-the-point formula boasting a concoction of the top pump ingredients giving you super vascularity and muscle tearing pumps.