The photostable formula with mexoryl XL, a patented broad spectrum filtering system along with other powerful filters, protects the most exposed areas from UVA and UVB rays. Photostable, the formula doesn't lose its efficiency during sun exposure. Efficacy tested under dermatological control.The Vichy commitment: Hypoallergenic. Paraben-free. Fragrance-free. Preservative-free. Water-resistant.