Black hair dye shampoo with fast effect: For women and men! 100% FALL HAIR COVERAGE: usually 3-4 weeks Magical black hair in 10-15 minutes. Safe and easy to use !!! Natural ingredients: The hair dye shampoo is mainly made from argan oil and ginseng extract. it also plays a role in restoring damaged hair. Nourishes hair, makes it healthier and shinier; User-friendly: Just like regular hair care, the shampoo is very easy to use. 10_15 minutes