Hair also oxidises... like any defenceless surface exposed to open air. Hair deteriorates because of the corrosive chemical effects of free radicals, oxygen molecules altered by solar radiation & environmental pollution which attack the cuticle & weaken the hair structure. The hair loses its natural softness shine, colour & beauty. This great product moisturises, nourishes, softens, & detangles in one quick application. Smoothing the cuticle & capillary fibres, it leaves the hair with a great shine without any added weight.