A little help with standard hair shader in Arnold [MaxtoA]


So I am making a model for my portfolio. All good and well but I can’t seem the standard hair to work like I want it to. I want the hair to have a few grey hair strands on an overall black hair.

If I increase randomness of melanin a few strands gets blonde while other remains black. And if I decrease overall melanin parameter every hair gets blonde and then grey not just the random ones.

Trying out hair…

No Hair…

PS sorry if I made some mistake posting this here, this is my first time in the forum.