<![CDATA[Since ancient times, hair has been referred to as a woman's crown. Hair plays an important role in appearance, as it not only serves to protect the head but also enhances one's overall appearance. One of the hair characteristics that contributes to an attractive appearance is hair color. Avocado leaves (Persea americana L.) are one of the plant parts that have potential as a natural coloring agent because they contain various chemical compounds, including alkaloids, flavonoids, tannins, saponins, glycosides, and steroids/triterpenoids. This study aimed to formulate avocado leaf ethanol extract into a gel preparation as a healthy and economically valuable alternative natural hair dye. The study was conducted by preparing avocado leaf ethanol extract using the maceration method with 80% ethanol, followed by phytochemical screening. Hair dye gel formulations containing avocado leaf ethanol extract at concentrations of 10%, 20%, and 30% were prepared. The evaluation of the physical quality of the hair dye preparations, effectiveness testing, skin irritation testing on human volunteers, and preference testing were also conducted. The results showed that avocado leaf extract contained alkaloids, flavonoids, tannins, saponins, glycosides, and steroids/triterpenoids. The 10%, 20%, and 30% avocado leaf ethanol extract formulations could be formulated into hair dye gel preparations because they demonstrated good physical quality and produced light brown and dark brown colors.]]>
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