Instant Hair Dye Shampoo with Argan Oil – Natural Black (420 ml) A quick hair dye shampoo that covers white hair 100% in just 8 minutes. Enriched with argan oil to hydrate and add natural shine to the hair. Its formula is easy to use, similar to regular shampoo, saving time and effort. Free from ammonia, sulfates, and parabens, making it suitable for all hair types.