Hair Dye
Hair coloring, or hair dyeing, is the practice of changing the original hair color. The main reasons may be cosmetic: to cover grey or white hair, to change to a color regarded as more fashionable or desirable, or, to restore the original hair color after it has been discolored by hairdressing processes or sun bleaching.
More recently though, many men have infused the style into their hair styling preferences as it gives them a lot of variety with colors to explore from.