TRESemme Keratin Smooth shine oil with Marula Oil. Take control of your frizz with our keratin smooth shine oil, with marula oil. It smoothes each strand of hair to boost shine for a lustrous, silky finish. It gives you 5 smoothing benefits in 1 system, for hair that’s silky smooth but still full of natural movement. The system gives up to 72 hours frizz control, silkyshine, perfectly detangles knots, soft feel, and tames flyaways.