Further, Indigo (neel) is a natural colourant used for years to colour the hair. It creates a blue-black colour and can be mixed with henna to cover grey hair and make the colour darker.

Blue shampoos replace orange undertones with cooler brown shades. We tested the market leaders in our beauty lab to find the best for brunettes. Shop now.

“Because grey hair is colourless ... they won’t leave behind any blue tones. Added black oat extract, coconut oil and hemp seed oil bolster the structure of the hair, helping to repair ...