DLPA (dl-Phenylalanine) is a dual-form amino acid combining both d- and l- configurations to support multiple physiological pathways. The d-form works by potentially inhibiting enzymes that degrade endorphins and enkephalins—natural compounds that modulate comfort perception in the brain. The l-form serves as a precursor to neurotransmitters that promote mental clarity and alertness. This 30-tablet formula from Source Naturals delivers a comprehensive approach to amino acid supplementation. Take one tablet one to three times daily as part of your wellness regimen. Source Naturals has maintained rigorous standards since 1982, formulating over 600 products using bioavailable nutrients and addressing systemic balance. Not recommended during pregnancy or nursing; consult your healthcare provider before use if currently under medical care.