BioStacksHow Zeaxanthin supports vision
Zeaxanthin plays a important role in vision. Zeaxanthin is a xanthophyll carotenoid and an isomer of lutein. It concentrates at the very center of the macula (fovea), while lutein is more peripheral — together they provide complete macular pigment coverage. In clinical studies, zeaxanthin concentrates at the fovea — the exact center of sharpest vision.
Effective dosing
Most evidence supports 2–4 mg of zeaxanthin daily. AREDS2 study used 2 mg/day; typically paired with lutein. Products below this range may not deliver meaningful results.
Clinical research
Zeaxanthin has strong clinical evidence for vision benefits. Confirmed in the AREDS2 trial (5,000+ participants) as part of the macular health formula Learn more
