The Matrix SoColor Pre-Bonded permanent hair colour range promises to infuse each and every strand with rich colour and protective nourishment for healthy, smooth coloured hair. Each formula is blended with Bond-Protecting Concentrate which helps to maintain the integrity of the hair structure, colour after colour. The SoColor Blonde Collection is ideal for levels 5-8. SoColor Pre-Bonded permanent shades and SoColor Sync Pre-Bonded tone-on-tone shades are perfectly matched, so you can achieve seamless, root-to-tip colour that lasts and fades on tone. The Ultra Light (UL) shades are low in ammonia and are not to be intermixed with the other collections. The UL shades give up to 4 levels of lift, and the UL+ shades can give up to 5 levels of lift. Key Benefits: ul.kit li {list-style-type: disc; margin-left: 15px;} Pre-bonded, helping to protect the inner hair structure, colour after colour* (*Assessed after 7 applications on sensitised hair) Ideal for levels 5-8 Pre-Paired with our SoColor Sync tone-on-tone range for seamless results from root to tip The UL shades give up to 4 levels of lift, and the UL+ shades can give up to 5 levels of lift Click Here to read the SoColor Pre-Bonded Permanent Colour Technical Guide.