Product Overview Complete your perfect style with Sassoon Professional Hydro Finish 50ml a brilliant serum that once applied to your hair seals & nourishes each individual hair str&. Benefits Add Sassoon Professional Hydro Finish to dry hair to not only nourish your hair but also to seal in moisture leaving you with beautiful, soft, shiny, healthy hair. The serum also helps to define your hairs look & subtly add detail so you can achieve a style you are truly proud of. Key Technology The Sassoon Professional Hydro Finish has a hydrating Cashmeratex formula along with avocado oil extract molecules which work by forming a layer around your hair, smoothing your hair & protecting it from frizz.