Zeaxanthin Products | Cleanchem - Zeaxanthin is a carotenoid that plays a role in protecting the eyes from oxidative stress. It is commonly used in preventing age-related macular degeneration (AMD) and cataracts. Zeaxanthin filters harmful blue light and acts as an antioxidant to protect the retina. Supplementation with zeaxanthin is recommended to improve visual acuity and reduce the risk of eye diseases related to aging.