A randomized comparative study on melasma during summer with a visible light-protected tinted sunscreen versus a standard non-tinted sunscreen
Helena Polena1, Catherine Queille-Roussel2, Marlène Chavagnac1,3, Christelle Graizeau1,3, Luc Duteil2, Thierry Passeron4,5, Michèle Sayag1
1NAOS Group, Research and Development Department, Aix-en-Provence, France
2Center of Clinical Pharmacology Applied to Dermatology (CPCAD), L’Archet 2 Hospital, Nice, France
3NAOS Institute of Life Science, Aix-en-Provence, France
4Department of Dermatology, Centre Hospitalier Universitaire de Nice, University Côte d’Azur, Nice, France
5C3M, INSERM U1065, University Côte d’Azur, Nice, France
Written by
Dr. Helena Polena In collaboration with 4 others professionals
Melasma is a common hyperpigmentation skin disorder, characterized by relapse due to sun exposure. Ultraviolet (UV) radiation is the main cause of skin pigmentation, but more recently visible light has been shown to be an important contributor. Therefore, sunscreens against UVA, UVB and visible light are key in melasma prevention, but few comparative studies have been conducted. The aim of the study is to compare a sunscreen containing photoprotection against visible light (tinted product) to a non-tinted sunscreen in the prevention of melasma relapse, using instrumental and clinical assessments.