Phd nutrition amino drive is phd nutritionrsquos newest product it has been designed to give you sustained energy release for any workout or activity yoursquore tacklingr phd nutrition amino energy contains 100mg of caffeine to give you a nice steady release of energy remember it isnrsquot a pre workout it is made for prolonged energy not a quick burstr phd nutrition amino energy contains 74g of performance driven amino acid blend including vitamin c these are taurine beta alanine