TLDR Eleven traditional Polynesian plants show potential for natural anti-aging, hair growth, and skin brightening products.
In 2019, researchers investigated the potential of 11 traditional Polynesian plants for use in anti-aging, anti-blemish, and hair care products. The plants were selected based on their traditional use in Polynesian cosmetics, their biogeographical status, their phytochemistry of cosmetic interest, and their availability and absence from the UICN list. The study found that these plants showed promise for development as natural anti-aging or hair care products and as skin brightening agents. One plant, Calophyllum inophyllum, was noted for its diverse applications, including its use in India for treating baldness and promoting hair growth. The seed oil of C. inophyllum was also used for treating various skin diseases and joint pains. In Polynesia, parts of C. inophyllum were used as anti-aging agents, and a 2017 study found that the fruit induced apoptosis in breast cancer MCF-7 cell line via the mitochondrial pathway in a dose-dependent manner.
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Natural products may help treat hair loss by promoting hair growth with fewer side effects.
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