Tyrosine is a precursor to various neurotransmitters and increases plasma neurotransmitter levels (particularly dopamine and norepinephrine), but has little if any effect on mood except during tense conditions.
Interestingly, tyrosine is converted by the opium poppy into morphine, and by the peyote cactus into mescaline.
L-TYROSINE CAPSULE INGREDIENTS
- Vitamin B6
Take two capsules daily, with water, on an empty stomach at least 30 minutes before eating.