Change your hair color in 5 minutes; Olive Oil Hair Dye A Wash Black Shampoo 1Pack(10pcs). Use like normal shampoo. 100% HALAL, GMPC. Like using normal shampoo, in 5 minutes Olive Oil Hair Dye black hair shampoo changes your hair to black. It is suitable for men and women, and lasts more than four weeks until your new white hair grow out. 
HOW TO USE: 
i. Put on gloves (otherwise the nails will be dyed grey, although that does not affect health) ii. Make your hair wet with both your hands. iii. Wipe off the water on the hair. iv. Squeeze out the cream, mix evenly and apply on hair. If the hair is more, please use 2-3 sachets one time for best result. v. Promptly put the shampoo on the hair and rub it until it reaches the bottom of the hairs, then rub the hair for 5-10 minutes so that the shampoo moistens the bottom of each hair. vi. Wash the shampoo away. vii. The hair will become dark and shining. Recapture your impressive black hair look with this revolutionary, no-fuss instant blackening shampoo. This shampoo washes and colors(black) your hair in just 5 minutes and lasts up to 4 weeks. This product has no adverse effect on your hair.

Convenient . Easy in operation, just like using normal shampoo.  Time saving . Only one sachet can give you black hair and shining hair in 5 minutes.  Cost saving . Compared to the expensive cost for dyeing hair in the hair salon, the Olive Oil black hair shampoo is more than 10 times cheaper.  Natural and mild. Olive Oil black hair shampoo is a hair-care product in a formula of natural luxurious herbal medicines. It is a natural, non-toxic and hurtles product with high technology.Instant BlackeningFor men and women 5 minutes instant result  4 weeks minimum durationValue for money