This is MY desert Island product! I hand on heart use it every day!
 
What Wella says:
Luminous Smoothing Oil is a versatile finishing oil that helps style the hair effortlessly. Enriched with macadamia seed and avocado oils, the lightweight texture of this oil will create a glossy effect. It makes your hair up to three times smoother.
 
What I say:
I use a couple of drops on damp hair and then a few more once I have finished blow-drying. The shine and smell is incredible and without this, my hair looks lack lustre and dull. It's a far more superior product to other leading anti frizz serums. You only need a few drops so this will last you a good while too.