HealthWise® Taurine is 100% pure pharmaceutical grade amino acid powder. Taurine is an organic free amino acid found in high concentrations in the tissues of the heart, skeletal muscle and central nervous system of healthy individuals. Animal protein is an excellent source of taurine, however it is not generally found in vegetable protein, making this an ideal supplement for vegetarians. Did you know? Taurine is named after the Latin 'Taurus' which means bull or ox. Taurine is naturally produced in the testicles of many mammals, however rest assured that HealthWise® Taurine is not extracted from the semen or urine of bulls!