I will go first..And let me say I do not work nor am I affiliated with any one of these copanies I am about to mention.

Before I work out I take SuperPump 250 by Gaspari and MRI NO2 Red.

My pumps are sick as ****. I get good sustained energy from the superpump and sick pumps from the no2. I feel like I can work out for hours and recover quickly between sets. Only negative is the price on the no2 and the superpump gives me stomach complications when I take at a high dose.

So, what are you all taking for no2 products and why?