Benefits
Macular and eye health
The three macular carotenoids build up macular pigment, the eye's natural blue-light filter, supporting long-term eye health.
Visual performance
In randomized research, lutein and zeaxanthin improved measures of visual performance such as glare tolerance and contrast.
Antioxidant protection
As carotenoid antioxidants, they protect the retina from light-induced oxidative stress.
Mechanism of action
Macular pigment
Lutein, zeaxanthin, and meso-zeaxanthin accumulate in the macula, filtering harmful blue light and quenching free radicals.
Antioxidant action
The carotenoids scavenge the free radicals generated by light exposure, supporting retinal health.
Clinical trials
Randomized, double-blind, placebo-controlled study of lutein and zeaxanthin on visual and cognitive performance. (Parekh et al. 2024, Advances in Therapy)
Healthy participants.
Lutein and zeaxanthin supplementation improved measures of visual performance versus placebo.