This targeted hair mask helps to smooth the surface of each hair strand, reducing frizz, increasing manageability and adding brilliant shine. Its unique pH-balanced formula returns the hair and scalp to its optimum pH value of 4.5, improving the structure of hair both inside and out whilst retaining 90% of the colour pigments inside the hair’s matrix, preventing premature fading for long-lasting, vibrant colour for up to 30 uses. Free from Silicones and artificial colours. Vegan-friendly.