Piz Buin 1 day long lotion SPF 15 medium protection combines photostable UVA/UVB broadspectrum Helioplex filters with patented technology to provide your skin with up to 6 hours of long lasting protection. Vitamin E helps neutralise free radicals which cause premature skin ageing. Its non-greasy formula is quick to absorb. Allows gradual tanning. Sweat and water resistant. Apply generously before sun exposure. Full body application = 3 tablespoons. Reducing this quantity lowers the level of protection significantly. Reapply frequently, especially after sweating, swimming or towelling. Avoid midday sun.