Started taking test stack last year after coming across the product on a fitness site. I found the reviews hard to believe so I wanted to try it for my weight training. I started with a 90 day supply to get going. Within a week I started to feel more energy and amazing focus. My lifting steadily rose in ability to add weight to my lifts. I noticed my muscles started to harden and recovery was shortened as well. Out of any supplements I have ever taken test stack delivered me the results I was looking for and as promised on the website. As a bonus all the sexual affect promised came along as well. I am very satisfied and a loyal customer now I plan on taking it full time as of now. I have never experienced anything negative at all while taking this product. No sickness, nausea or jitters an many other supplements have given me in the past. A+ product extremely satisfied customer.
-- Steve B