Hair Blackening Shampoo 100ml*2+15ml

We are offering our client an excellent quality range of Hair Blackening Shampoo 100ml*2+15ml.
Directions for use: Use a towel to pat dry excess water from wet hair, as shampoo can stain skin, make sure to use gloves, pour into palm equal proportions of No. 1 Hair Darkening Serum and No. 2 Hair Conditioning Wax and mix thoroughly, apply evenly to hair, while massaging lightly, ensure that each strand of hair is coated with the serum from tip to root, massage hair continuously for 5-10 minutes, (Hair color darkens as massage time increases), leave serum on for an additional 5 minutes and then rinse thoroughly to clean hair with cold or hot water, (if you are using for the first time, it is recommended to repeat the above process)