Formulated without PPD/PTD.†<br/>†Do not use this product if you have a known PPD/PTD allergy, as you may still experience a severe reaction.<br/><br/>With bonding primer and bonding treatment to help reinforce hair structure* and create sublime colour.<br/><br/>Reinforced hair structure .* Multidimensional colour. Zero ammonia. 100% grey coverage.<br/>*ColourStrong full kit vs. ColourStrong colour step only<br/><br/>What's the secret?<br/>Our continuous system with colour + bonding has aha (alpha-hydroxy-acid) in every step!<br/>Step 1: Prime. Bonding primer with aha reinforces the internal structure of your hair and, like a base coat, prepares it for sublimely multidimensional colour.<br/>Step 2: Colour. Reflective pigments + aha fill your primed hair evenly, for multidimensional tones.<br/>Step 3: Treat. Bonding treatment with aha seals colour in like a top coat and gives final reinforcement to the hair structure.
Morrisons Grocery