Khadi herbal hair colour natural hazel for grey blond or dyed blond hair henna or henna amla ampamp jatropha has to be used first in some cases khadi amla henna indigo ampamp cassia can be mixed to create individual hair colours results from khadi natural hair colours depend on hair type existing hair colour duration ampamp warmth always do a strand test to establish colour desired before application 100g dyes shoulder length hair long lasting colour