Using Hair Dye - Basic Rules

Generally, the use of pure black dye is not permissible.

Rasulullah SAW said:

"There will be people who will come later (in my Ummah) and apply black dye. They will not even smell the fragrance of paradise." (Abu Dawud).

However, it is should also be known that black dye is permissible for a Mujahid (warrior) to give the impression of being young. (Jawahirul Fiqh: Volume 2: Page 421)

To dye the hair any other colour besides black e.g. Mehndi or Katm (types of grass) is permissible i.e. natural dye. This was the practice of Rasulullah SAW and his Companions RA.

And Allah Taãla Knows Best.