La Roche-Posay Pharmacy. ANTHELIOS XL zones sensible au soleil SPF50. The entire ANTHELIOS line from La Roche Posay is a set of specific sunscreens for people with sensitive skin with tendencies to develop allergies. Its formulation is based on the idea of a name of minimum ingredients to avoid intolerances and its filter against UVA radiation is always the maximum recommended by the European Union. Total protection for any occasion. It offers very high protection for highly exposed and sun sensitive areas. It is waterproof and contains no parabens.