Heart leaf (Houttuynia cordata), also known as fish mint, fish leaf, rainbow plant, chameleon plant, fish wort, is mainly grown in Asian countries like India, China, Japan, and Thailand. In Vietnam, it grows wild, often in moist soil, and is used for food or medicinal purposes.

Heart leaf is quite easy to grow so it can be eaten daily both raw and cooked. Its root, the most eaten part, is soft and crispy, with a mildly fishy taste. Branches and leaves are used in salad, stir-fries, pickled or processed drinks like tea and wine, and is beneficial for health. The whole plant is used as ingredients in traditional Vietnamese medicines.

• Applied in health food field;
• Applied in pharmaceutical field, market also has its injection with the function of detoxification;
• Applied in cosmetic field, effectively removing aged cutin and redundant grease.