Butterfly bean flower, madder and isatidis root are all natural water-soluble plant dyes. The flower of butterfly and bean is purple when soaked in water directly, or blue when added with lemon. It can be used to dye rice, tea, cakes and other foods. Moreover, it is rich in anthocyanins, vitamins and other substances, which can improve the nutritional value of food while dyeing food.

It is also a popular drink for Thai women around 30 years old for beauty and health. It can prevent rising blood pressure, fight inflammation, and has calming and relaxing effects. The anthocyanins of butterfly bean are helpful to improve myopia, night blindness, retinopathy, capillary fragility and other problems. They are well-known for their effect on eye protection and can prevent cataract and glaucoma and other eye diseases. Anthocyanins can also inhibit visceral fat accumulation and prevent obesity, and their effect on prevention of lifestyle diseases and weight loss is also widely concerned.

And anthocyanin still can promote collagen formation, raise colour beauty, antioxidant effects can promote blood circulation, improve metabolism, and many studies have shown that getting enough anthocyanins, can fall blood pressure, prevent arteriosclerosis, and protect the microvascular health, reduce the risk of cardiovascular disease, anthocyanins also can increase insulin secretion, reduce the risk of type 2 diabetes.

It also contains vitamins A, C and E, which can resist oxidation, beautify beauty, repair eye mucosa, improve immunity and promote blood circulation. Flavonoids, "flavonoids," fight oxidation and improve the immune system.