I purchased this product on the back of a sample and can honestly say it did not disappoint. I did not get the jitters and was able to push a lot harder on the weights when in the gym and even got a personal best the first time I used it. I would highly recommend this pre-workout and I will definitely be buying more again in the future. Thank you to Gym Power for not only stocking it, but for their very speedy delivery and great customer service too. Thank you 🤩👍🏼