Phycocyanin is a blue pigment found in certain types of algae, particularly in spirulina, a popular dietary supplement. It belongs to a group of pigments called phycobiliproteins, which help capture light energy for photosynthesis. Phycocyanin is known for its vibrant blue color and is often used as a natural food coloring in various products. In addition to its coloring properties, phycocyanin is believed to have antioxidant and anti-inflammatory effects. Research suggests that it may support immune function and promote overall health. Due to these potential benefits, phycocyanin is gaining attention in the fields of nutrition and wellness.