The LIVING PROOF Perfect Hair Day (PhD) Advanced Clean Dry Shampoo is a 30ml spray designed specifically for dry hair. With a formulation featuring alcohol denat, this product from Living Proof in the United States is perfect for achieving a shiny finish on your tresses. The convenient size and long shelf life of 24 months make it a practical choice for keeping your hair looking its best between washes. This advanced dry shampoo is a must-have for anyone looking to refresh and revitalise their hair without the need for water.