Home Thierry Passeron Prof. Thierry Passeron Dermatologist France Expert content +5 by 7 professionals Posters 5 min A randomized comparative study on melasma during summer with a visible light-protected tinted sunscreen versus a standard non-tinted sunscreen by Prof. Thierry Passeron Expert videos 15 min What is hyperpigmentation: causes, symptoms, advice? +6 by 8 professionals Posters 5 min A new in vitro method to predict in vivo photoprotection against visible light-induced pigmentation and a new visible light photoprotection factor Load More