1. Innovative photo-stable light protection filters offer highly-effective protection against UVB and UVA radiation. 2. The unique biological active substance ECTOIN® increases the cell's natural defense against UV radiation and loss of moisture. ECTOIN® is a natural substance which is found in the deserts and salt lakes of Egypt, and is produced by micro-organisms. It penetrates into the skin easily due to its low molecular weight and protects it against stress factors such as heat, cold and UV light by supporting the cells' own repair and protection mechanisms. This increased protection against UV radiation also reliably contributes towards the avoidance of premature photo-aging (light-related skin aging). Furthermore, ECTOIN® regulates the cells' natural moisture content and prevents them from drying out. Incidentally, ECTOIN® also keeps the skin's immune system in working order. Conclusion: the SUN series products offer measurable sun protection and in-depth skin care at the same time.