Photoderm M SPF50+ was tailored with dermatologists to address the causes and consequences of melasma:- It provides the highest blue light protection on the market: 61%* to prevent recurrences.- Enriched with glabridin, the new patented formula also biologically regulates the pigmentation process and thus helps to prevent pigmentation spots, reduce their appearance and limit their recurrence.- The high concentration of pigments have the power to stop blue light damages. It also allows high coverage to perfectly hide dark spots with a pleasant powdery finish and mattifying power.- The SUN ACTIVE DEFENSE technology, rather than overloading the skin with filters, reinforces the skin's self-defenses abilities to compensate for the biological impacts of UVA. It brings an antioxidant protection and maintains skin immune defenses under the sun.