Science-Based Nutrition Supports Visual Function Dietary Supplement Supports Visual Function Helps Filter Damaging Blue Light Helps Neutralize Free Radicals Non-gmo / Gluten Free / Soy Free At Doctor's Best, we prioritize the vision-boosting benefits derived from nature's gifts. Our formula features lutein, a natural carotenoid extracted from marigold flowers, which acts as a protective shield, supporting both vision and overall health.