TREsemmé Smooth Curls Oil, enriched with Argan Oil, nourishes hair and adds a healthy-looking shine, resulting in defined, easy-to-manage curls. As part of the TREsemmé Smooth Curls routine, it’s never been easier to achieve fabulous, fresh curls. The new TREsemmé Smooth Curls 4-step range, enriched with Argan Oil, leaves you with defined to-die-for curls. No silicones, sulphates, parabens, alcohol or dyes.