Our Fruit and Vegetable Hair Cream Contains P-Phenylenediamine and Methyl Isothiazolone. It Can Be Easy to Color, Mild Dyeing Care Is Harmless to Hair Quality, Solid Color, No Fading, and It Is Easy to Re-Dye Hair. Its Use Method Is Very Simple: First Put on Gloves, Open the Lid, Install the Comb, Then Teeth of Comb up, Squeeze out a Proper Amount of Hair Dye, and Then Comb from Hair Root to Hair Tip with Hair Dye Comb to Make the Color Uniform, finally, Wait 30-40 Minutes and Rinse with Clean Water. and OK. Reduce Color Fading, Achieve Long-Term Black Hair Effect, Bright Color, Make the Hair Black and Shiny.