Pure Cognitive Aminos 60 capsulesPhenylalanine, tyrosine & Co. Amino acids are important nutritional components and building blocks in the body. The combination of the amino acids phenylalanine, tyrosine and tryptophan with acetyl L carnitine and taurine is ideal for supplementary supply when there is an increased need. The amino acids tryptophan and phenylalanine are essential (indispensable) and must therefore be obtained from food. The body cannot produce them itself. Both are