Additional Details ------------------------------ Safety warning: CAUTION: This product contains ingredients which may cause skin irritation on certain individuals and a preliminary test according to accompanying directions should first be made. This product must not be used for dyeing the eyelashes or eyebrows, to do so may cause blindness. Directions: 1. Clean and dry your hair. 2. Mix the Bigen powder with room temperature tap water in a non-metallic bowl or cup. 3. Apply the mixture onto your dry hair, beginning where you have the most gray. 4. Wait for 20-30 minutes. 5. Rinse your hair completely with warm water until it is clear. 6. Apply shampoo and rinse.