The goldwell dualsenses color extra rich lock serum is a intensive care for thick to unmanageable, colour treated hair infusing the colour sealed, and increases colour brilliance. using the included uv filter protects the serum also against damaging sun rays. it also nourishes the hair. use the serum for unmanageable or thick hair. the innovative color chroma complex and a special fade stop formula regenerate for coloured hair. your hair is jojoba-oil rebalances and maintains shine and bright colours. the instant micro fluid technology ensures easy application & vision and noticeable results. colour will be easily sealed and the colour and protects. thanks to the built-in uv filters are the hair from sun damage with the best protection. the nourishing effect of serums giving the hair a healthy and glossy look and feel. directions for use used the extra rich lock serum after washing the hair. this is a sufficient amount of this serums evenly distributed across the handtuchtrockenen hair. no need to rinse. then can be styled as your own hair your hair as usual.