Hi doctor. I'm 32 years old I have full of grey hairs and I started to use hair color past 1 year in saloon. After doing hair color I see other hair got grey. So I consulted one dermatologist he preferred to use cuticolor hair dye but I can see some reviews that over chemical it is prepared off. Asking like which one to go ahead like cuticolor hair dye or inoa hair color. And also any other natural process for color my hair you prefer. I was applying henna early but due to head ache for a month I stopped and continued later with hair color. Pls suggest.