Schwarzkopf BC pH 4.5 colour freeze treatment is an intensely restoring, creamy treatment for colour-treated hair. The rich and highly nourishing emulsion contains Hydrolysed keratin to fill structural gaps in the hair, from the outer layer to the cortex. The pH 4.5 balancer technology tightens the hair structure and locks colour pigments into the deepest layers of the hair while improving the strength and elasticity of coloured hair. Hair is brought to optimal ph 4.5 colour, appearing as vibrant as on day one, until the next salon visit. Colour stabiliser protects the hair against colour fading along with special UV filters that protect hair from environmental effects. Comes in 750 ml. Adds Brilliant shine and provides in-depth care. Reduces frizz and smoothest the hair surface. Helps to optimize the pH level to 4.5. Strengthens the hair structure. An intensely restoring, creamy treatment for colour treated hair.