Nivea Sun Protect and Sensitive SPF 50 is free from perfumes, colourants and preservatives. It is essential to choose the right sun screens for your skin type, holiday destination, the time of the day and weather conditions. The SPF indicates the level of protection against harmful UVB rays and also the multiplication of natural protection for your skin type. Fairer skin requires a higher SPF to achieve the same level of protection that a darker skin type would get from a relatively lower SPF. However no sun protection product can completely block UV rays from reaching the skin.