Bioderma solar cosmetics. PHOTODERM MAX SPF50 + Lait Très Haute Protection. PHOTODERM MAX SPF50 + Ultra-fluid Peaux Sensibles. Waterproof. Maximum photoprotection of UVA / UVB rays for skin intolerant to sun exposure, for very light skin and for those batteries under high sun exposure (ski, tropics ...). This is achieved thanks to its BIOprotection Cellular patent, which stimulates the skin's defenses and preserves its DNA. . Very easy to apply and invisible, it has a silky and ultra-light texture for a feeling of well-being and softness.