Dexe Black Hair Shampoo is a hair coloring solution that comes in convenient single-use sachets. This product is designed to gradually darken gray hair while cleansing, offering a natural-looking black color. Each box contains 10 sachets of 25ml each for multiple applications. As this is a hair coloring product, it is recommended to perform a patch test 48 hours before first use to check for any allergic reactions. The product should be used on wet hair and left for the recommended time before rinsing. Results may vary depending on original hair color and condition. Consult product packaging for complete usage instructions and safety precautions.