The genetic problem phenylketonuria (PKU) is The shortcoming to metabolize phenylalanine on account of a lack of the enzyme phenylalanine hydroxylase. Men and women using this dysfunction are often known as "phenylketonurics" and will have to regulate their ingestion of phenylalanine. In a very stack with racetam-course nootropics including piracetam https://flmodafinil80111.blogoscience.com/37919587/bk-2c-b-no-further-a-mystery