BLACK HAIR DYE FOR MEN PART - 1

Using black hair dye is a very great sin, whether it is in young age or old age.  There are strict warnings in the Hadith for it. 

 There is a Hadith in (Sunan Abu Dawood, Pg No. 578)

Translation of Hadith:  It has been narrated on the authority of Hadhrat Abdullah bin Abbas (May Allah be well pleased with them), that the Holy Prophet (Sallallahu alaihi wa sallam) said: In the last era, there will be some people who will use black hair dye like the chests of the pigeons; they will not get even the fragrance of heaven.

It is given in (Mishkaat Shareef, Pg No. 382)

Translation of Hadith:  It has been narrated on the authority of Hadhrat Jabir (May Allah be well pleased with him) that on the day of the Conquest of Makkah, Hadhrat Abu Quhafa (May Allah be well pleased with him) was brought to the Holy Prophet (Sallallahu alaihi wa sallam).  His hair and beard were as white as "Saghama" (a tree with white flowers), the Holy Prophet (Sallallahu alaihi wa sallam) said: Change this whiteness with something else and avoid using black hair dye.