Wella Colour Charm Permanent - 4A/237 Medium Ash Brown

A permanent, medium/dark ash brown hair colour

Wella Color Charm Permanent Liquid Colour in 4A Medium Ash Brown is from the ash tonal family; meaning it is a cool toned colour.

It has a blue base colour which neutralises (or reduces) any of the unwanted orange brassiness often found in dark brown hair. Your end result is a shiny, cool toned medium/dark brown.

  • Vibrant, Long Lasting and Fade Resistant Results
  • Uses Liquifuse™ technology to saturate, penetrate and fuse colour deep within the hair
  • Excellent grey coverage
  • Deep conditioning


This colour must be mixed with developer - the dedicated Wella Color Charm 20 Vol Developer is recommended.

Always mix Wella Color Charm Permanent Hair Colour in a 1:2 mixing ratio. This means you need twice the amount of developer to colour.
One 107ml bottle of Developer is enough for one bottle of 42ml Permanent Colour.

Apply the Permanent Colour to dry hair and allow to develop for 30 minutes or up to 45 minutes for additional depth or grey coverage.

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