Neoxanthin is primarily used in the field of nutrition and health due to its antioxidant properties. It is often incorporated into dietary supplements aimed at promoting eye health and reducing oxidative stress. In the food industry, it serves as a natural colorant, adding a yellow to orange hue to various products. Additionally, neoxanthin is studied for its potential anti-inflammatory and anti-cancer effects, making it a subject of interest in medical research. Its role in photosynthesis also makes it valuable in agricultural studies focused on improving plant health and yield.