RESUMO
In Hawaii, the plants P. albidus, P. forbesii, P. kauaiensis, and P. ruber are collectively known as mamaki in ethnomedicine, where P. albidus predominates. Farmed mamaki is becoming increasingly popular in Hawaii and the United States. Mamaki teas (such as bottled Shaka tea) are the dominant product. Historically, mamaki has been utilized for its medicinal properties, promoting well-being and good health through consuming tea made from its leaves, ingesting its fruit, and incorporating it into ointments. Mamaki holds cultural significance among Native Hawaiians and is widely used in ethnic medicine, having been incorporated into traditional practices for centuries. However, the scientific mechanisms behind its effects remain unclear. This review consolidates current knowledge of mamaki, shedding light on its potential therapeutic properties, physical properties, nutritional and mineral composition, and active phytochemicals. We also highlight recent research advances in mamaki's antibacterial, anti-viral, chemopreventive, anti-inflammatory, and antioxidant activities. Additionally, we discuss future prospects in this field.