once a day sun protection , 10 hours protection from one application P20 is a quick drying, transparent spray, with photostable UVA/UVB filters suitable for the whole family. Free from added fragrances, colourants, parabens, and other preservatives. One application offers long lasting protection; for up to 10 hours. Clinically proven to be "Very Water Resistant" To use: Apply generously and evenly, 15 minutes before sun exposure, to ensure no missed areas and sufficient coverage. Reducing the amount of sunscreen applied will significantly lower the protection. Do not stay too long in the sun even when protected. Avoid intense midday sun (11am-3pm). Avoid contact with fabrics to help prevent staining. Follow enclosed instructions for the full benefit of P20.