This site has limited support for your browser. We recommend switching to Edge, Chrome, Safari, or Firefox.
May improve cognitive performance during stress and fatigue.
Jongkees, B. J., et al. (2022). "L-Tyrosine supplementation and cognitive performance: A meta-analysis." Psychopharmacology, 239(5), 1413-1427.
Keep Thyroid Operating at Optimal Rate*
Support Cognitive Function Naturally