Anthocyanin is a water-soluble pigment that purple in fruits and vegetables. It is also considered as secondary metabolite that acts as a powerful antioxidant which is stronger than vitamin E. Anthocyanin is richly found in butterfly pea flower, which is a long-time Thai household plant. When anthocyanin is consumed, it helps detoxificate free radicals that damage our cells to prevent the risk of cancer, ageing and keeps our skin healthy. It also stimulates the circulation of blood in small blood vessels