Nutrex Niox Ultra is a pump and endurance blend like no other. Ingredients such as Glycerine, Agmatine, and Arginine will fill enhance blood flow and give you the pump that you've always desired. The added beta alanine will help with strength and endurance during your lift session. The best part about Niox Ultra is that it comes in pill form, so there is no need to mix with other supplements. Niox Ultra is non-stim, so there is no worry of jitters, crash, or sleeplessness.