Biokeratin Ach 8 Regrowth touch-up Dark blonde Description Dark blonde root touch-up. Features: - eliminates regrowth; - extends the time between dye treatments; - does not stain; - applies to dry hair; - can be washed out with shampoo. How to use Shake well before use, then spray the product onto the regrowth, holding the can about 10 cm away. Let dry for a few minutes before combing. Use a hair dryer to speed up drying. Format 75 ml spray can. Cod. 101284