Nitric Oxide, 100 capsstar rating 5steveMarch 30, 2006this product has worked very well for me. i have been taking it for 2 weeks and noticed longer pumps and my biceps and triceps have increased in size. To add to it my six pack has never looked so good! i mixed this product (nitrix oxide) with creatine pills and it has wroked wonders! I also noticed my sex life got better, do to the fact nitrix oxide increases blood flow. Great product give it try and the price is perfect!