Abstract
The ultraviolet rays (UV) included in sunlight influence the human bodies in ways such as photoaging, immune suppression, DNA damage, spots, wrinkles and skin cancers. Nowadays these influences of UV are known to be due to photoaging. Therefore, consumers need sunscreen products with UV protection. There are a lot of sunscreen products whose use depends on the situation. For example, the sunscreen functions should include higher UV protection and water resistance when people use a product in the sea or swimming pool during the summer. On the other hand, for daily use such as commuting and shopping, products should be composed mainly considering their texture in order to get a better feeling. In these situations, to develop products depending on each set of circumstances is important. The main points are the function of having higher UV protection and a texture which is related to better feeling. However, it can be said that the function and the texture are mutually incompatible. In this article, ways of combining these two elements are described.
