L – Phenylalanine

L-Phenylalanine is an essential aromatic amino acid that plays a key role in protein synthesis, neurotransmitter production, and mood regulation. It serves as a precursor for tyrosine, dopamine, norepinephrine, and epinephrine, which are vital for mental focus, alertness, and overall cognitive health. Since the body cannot produce L-Phenylalanine naturally, it must be obtained through diet or supplementation.