Review title is Smooths frizz! [SEP] It has a relatively inoffensive odor, but I prefer unscented products. But the special ingredient that glues split ends back together, a poly-electrolyte complex made from Polyquaternium 28 and PVM/MA copolymer, doesn't seem to be available in any unscented products. (Read The Beauty Brains blog forum for more info about this ingredient.) This is billed as a split-end mender, but the same mechanism seems to glue down the scales that produce frizzy hair. My hair looks smoother, darker, and shinier when I use this. It doesn't hold hair, so I use it first, then use a styling product.