The Bioderma Photoderm MAX Spray is a maximum photoprotection spray that stimulates the skin's self-defence systems. In addition to its surface UVA/UVB protective activity (filtering systems), Photoderm MAX offers real internal biological protection: Cellular Bioprotection. This exclusive patent preserves and stimulates the skin's defences (immunity) during sun exposure. How to use: Several times a day when exposed to the sun Apply evenly and liberally before exposure (a smaller amount of product reduces the level of photoprotection). Re-apply frequently, before and after swimming, rubbing and playing sports. Do not expose babies or young children to the sun. Excessive sun exposure is harmful to your health.