Product Overview Smooth those flyaways as you blow dry with Pureology Smooth Relax Serum, a lightweight serum that you use whilst you blow dry your hair to intensify your natural shine & protect your colour vibrancy, Benefits Use Pureology Smooth Relax Serum to instantly smooth your hair, with style memory that means your hair stays smoother for long, eliminating frizz. It is a non drying & non dulling serum that leaves your hair shining. Key Technology The exclusive Anti Fade Complex within Pureology Smooth Relax Serum helps provide heat-styling protection & maximise colour retention.