Powered by Living Proof's Triple-Action Cleaning Technology to address how hair looks, feels and smells, the brand's Perfect Hair Day (PhD) Dry Shampoo boasts a fast-absorbing powder that soaks up oil and sweat while the patented 'Healthy Hair Molecule' (OFPMA) also helps you remove the powders easily from hair, resulting in truly clean hair. You won't regret investing in this miracle worker that also feature odour neutralisers ad time-released fragrance that keeps hair smelling clean throughout the day - no-one need know how long ago you last washed your tresses.