Articles » Optimum Nutrition

This week's SYXX's product of the week is...Optimum Nutritions Gold Standard Pre-Workout Advanced!  This is a pre-workout designed by Optimum Nutrition that is an advanced version of their pre-workout, which intensifies energy & focus. It contains 6g of L-citrulline, 3.2g Beta-alanine and 200mg caffeine.  We've decided to compare the original Optimum Nutrition Gold Standard Pre-workout to this new advanced version in the form of...