The pro heat lightening system is designed to give up to six levels of lift, in half the time. The answer lies in its PRO HEAT technology. The three-part system: the Instant Highlights Heating Iron, Instant Highlights Lightening Cream and Instant Highlights Aluminium Foil have to be used together as, once combined, they work to ‘instantly’ lighten the hair in a controlled, quick and safe way. Unique in design it has a separator in-between the plates to help protect hair from the damage caused during the heat process as well as a heat gauge that is designed to regulate the temperature every 0.2 seconds to ensure the safe temperature of 140 degrees at all times. It is important to only use the L’Oréal Professionnel Instant Highlights tool together with the bespoke-designed foil and lightening cream when performing this service for optimum results.