research Inovasi pewarna rambut alami: Formulasi gel berbahan dasar ekstrak umbi bawang dayak (Eleutherine bulbosa (mill.)Urb.) dan uji sifat fisiknya
In this study, the researchers explored a hair dye gel formulated with Indonesian native plant extracts and found it produced stable brown shades on bleached hair, with the most preferred dark brown achieved at a 12% concentration, and showed no skin irritation.