So, if you are planning to dye your hair either for fun or to cover up the grey strands, make sure you use ammonia-free hair dyes. Most hair dyes are formulated with ammonia, an alkaline compound ...

Considerable of the coloring matter is washed off loosely, but enough is taken up by the capillary tubes to dye the hair.' The ammonia may be omitted, and a weak solution of the hydro-sulphuret of ...

Historically, box hair dye also tends to use more aggressive formulas—particularly higher levels of ammonia—which can do more damage to your strands. This is particularly true when going for ...

These semi-permanent hair dyes are perfect for switching up your ... this vegan formula is 100% ammonia-free, suitable for all hair types and has been proven to significantly reduce allergic ...

for hair dye removal. High street hair dye remover ... colour that’s been done either in salon or at home. Free from ammonia or bleach, it works well – just forgive the slightly ‘eggy ...

Touch-up greys, knock out brassy tones or enrich your colour with six shades of nourishing hair dyes (free from damaging chemicals like ammonia) and all the tools you need to do it. Words by Gitika ...