Muslims man identify as Mustapha Ibrahim has this little piece of lecture concerning dying of hair in Islam

“Those people dying their hair to black will not smell the
fragrance of Jannah. If you don’t know before I’m tellingyou now.

Prophet’s Quote

“Ibn Abbas (May Allah be pleased with him) Said: The messenger of Allah (Peace and blessings of Allah be upon him) Said: “At the end of time their will be people who
will dye their hair in black like the crops of pigeons. They will never even smell the fragrance of Paradise”. ( Reported by Imam Ahmad, see also Saheeh Al-Jaami No. 8153)
Dying hair with pure black dye is Haram because the prophet (peace and blessings of Allah be upon him) said:
(Avoid black) and because of the threat of punishment
with regard to this matter.This ruling applies to both men
and women.”