OstroVit - Histidine is an amino acid...
Tyrosine is necessary for the normal functioning of the psychological and emotional state of the body.
L-Tyrosine from Stark Pharm is able to improve mental focus and exercise technique, improves well-being and mood.
OstroVit - Tyrosine - an amino acid that is part of tissue proteins, is synthesized in the body from phenylalanine.