L’OrĂ©al Professionnel Dia Light is an ammonia-free semi-permanent tone-on-tone colour that is specifically formulated for maximum shine and condition. It it ideal for hair that has been previously coloured weakened or sensitised. Dia Light is the perfect partner for a colour refresh and toning lengths and ends in between regular colour services. The acidic gel-cream technology is to neutralise and gloss after lightening and refresh lengths after colour. Dia Light is ammonia-free and seals the cuticle for a vinyl-like finish and is ideal for previously coloured hair. Dia Light Boosters are the perfect partner for a colour refresh and toning lengths and ends in between colour service and when the Ash Booster is intermixed with Dia Light it can be used to create infinite possibilities and personalised results. The Booster is the perfect tool to create bronzed glossy lengths to keep on top of the trend. This booster helps boost neutralisation and visibility for reflects on darker bas…