Nitric Oxide supplements have been the weapon of choice for maximizing the pump. Essentially, nitric oxide helps promote blood flow to the muscles, which in turn supports a better pump. NO3 chrome utilizes NO3 in the form of arginine Nitrate Fusion of L-Arginine and Nitrate. Combining these two efficient and powerful ingredients Helps give you the long lasting, unbelievable pumps to help your muscle gains. NO3 chrome has been the pump product for years, and to keep raising the bar we’ve explored new ingredients to help take you to greater heights.