Today's ultra-savvy approach to beauty has given us deeper knowledge of individual ingredients' role in certain products.

two ounces of carbonate or white lead, and three ounces of powdered quicklime. It is applied in the same manner as the former. Litharge and lime alone will also color the hair. The hair dyes ...

From using indigo and amla to using sage and rosemary, check out the DIY black hair dyes to cover grey hair at home.

The dyes are also vegan, containing the likes of ‘Hero Sea Silk’, an extract from red algae that restores hair fibres, and cocamide ... You can also pair White Heat with Natural Blonde, or I Saw Red ...