Instructions for use: Apply No.0 to dry hair for 10 minutes, then apply No.3 and wait for 10 minutes, then use no4 shampoo and no5 conditioner as normal.
The function of No.0 is to enhance the effect of No.3 by 3 times and repair up to 68%.
It can also be used after dyeing hair and will not cause the hair to lose color. Repair disulfide bonds and strengthen hair.
