Revive dull hair with our powerful Power Cools hair colour formula, the Matrix SoColor 4AA Professional Permanent Colour in Medium Brunette Double Ash. The Matrix SoColor permanent hair colour range promises to infuse each and every strand with rich colour and protective nourishment for the healthy and smooth coloured hair. Each formula is blended with bond-protecting concentrate, which helps to maintain the integrity of the hair colour after colour. Using Matric ColorFreeze technology, the Matrix SoColor 4AA professional permanent colour with low ammonia promises to fade cool for optimal softness in colour and touch. The 4AA Medium Brunette Double Ash shade is the perfect permanent colour for those with an affinity for cool shades and nourished shiny locks.

Mix with So Color Beauty Developer (10, 20, 30 or 40 VOL) at a 1:1 ratio. Development time of 35mins. Ask more information about this product