Setup: Before first use and every subsequent use, it is crucial to perform a 48-hour allergy patch test according to the instructions in the box. This product is designed for `adult male` hair only. Ensure your hair is dry and clean before application. Protect clothing and surrounding surfaces from potential staining. Always wear the provided gloves.
Compatibility: This product is specifically formulated for `men` seeking to cover grey hair with a `Natural Dark Brown Black (H45)` shade. It is for head hair only. Do not use on facial hair (beard, mustache, eyebrows) or eyelashes.
Care: Info needed: To maintain the color, avoid excessive washing immediately after application. Use shampoos and conditioners appropriate for color-treated hair. Reapply as grey roots become visible, typically every 4-6 weeks, always performing a patch test before each reapplication.