Oh,my god,you're referring to T-mag?Bob Smith said:Ask them what results they have achieved with this new "wonder product." They might get better pumps in the gym, but a pump has no bearing on growth. The SuperSlow lifting method will cause a pump and soreness, but it too is also useless for muscle growth.
Here is a good article to read about nitric oxide products, of which NO2 is one. http://www.t-mag.com/nation_articles/300nak.jsp
