The Hot/Cold Alternating Mode was developed to automatically switch the airflow between hot air and cold air, resulting in smooth, lustrous hair. This temperature gap lessens waviness, making the surface of the hair uniform. And because the hair now reflects more light, it adds luster.
Test Method: After hair bundles were dried with a dryer while they were being brushed, their luster levels were measured while they were held in a curved position. Examples are for a case in which a Panasonic nanoe™ hair dryer with the Hot/Cold Alternating Mode was not used and for a case in which it was used. * Effectiveness may vary among individuals.