Chlorophyll a is a green pigment found in plants and algae, playing a crucial role in photosynthesis by absorbing light energy and converting it into chemical energy for plant growth. It is widely used in the food and beverage industry as a natural green colorant, enhancing the visual appeal of products like candies, ice creams, and beverages. In agriculture, it serves as a key component in foliar fertilizers, promoting plant growth by improving photosynthesis efficiency. Additionally, it is utilized in the cosmetic industry for its antioxidant properties, helping to protect the skin from oxidative stress and environmental damage. In the field of health supplements, chlorophyll a is incorporated into products aimed at detoxification and promoting overall wellness. Its application also extends to research, where it is used as a biomarker in studies related to photosynthesis and environmental monitoring of aquatic ecosystems. Studies also explore its potential in medicine for reducing inflammation and supporting general health.