Our Fruit Vinegar Black AB hair dye contains fruit vinegar Black A hair dye: Polygonum multiflorum extract, sodium carbonate; Fruit vinegar black B hair dye: ginger extract, vitamin E. It reduces scalp irritation. The effect of dyeing hair is long-lasting and rich in color. The way to use it is simple: make sure your hair is dry before use. Wear protective gear and gloves during operation, and apply facial cream to areas that may come into contact with the skin, such as face, neck, behind the ears, and arms. Take equal amounts of hair dye A and B from the palm of your hand and mix well. Apply the hair dye mixture evenly to the hair and adjust the concentration to achieve the desired color depth. Rinse your hair thoroughly with warm water until the water runs clear. And can have a healthy black and bright color, color lasting bright.