Tresemme Keratin Smooth Conditioner with Marula Oil - 24 Fl Oz / 700 mL x 4 Pack Let's give it to you straight. Our redesigned formula with luxurious Marula oil delivers not one, but five smoothing benefits so you can forget the frizz and indulge in gorgeously silky hair for up to 72 hours. Don't let unruly frizz ruin your style. When it comes to control, you should never have to compromise smooth for limp, poker straight hair. Specially formulated to fight frizz, detangle knots, boost shine, add silky softness and tame those pesky flyaways.