what is the difference between dlpa and l phenylalanine?
L-phenylalanine. Phenylalanine is an essential amino acid, meaning humans cannot synthesize phenylalanine on their own. [3] Instead, phenylalanine must come from the food we eat or supplementation. Sanesco uses a combination of D-phenylalanine and L-phenylalanine, called DL-phenylalanine or DLPA.