Ultra SK Causes of Sensitive Skin It is always possible to list the main reasons why the skin becomes sensitive. Inadequate care can wear on the skin and become too sensitive. This can happen if you use Get White Face of poor quality, which includes mineral Ultra SK oils, petroleum products or when you do not.do not use protective cream. The skin can not tolerate such treatment indefinitely - the lipid layer that provides the protective function is destroyed. Sometimes you come across a skin, which is called unstable: it can show unusual sensitivity at some point, then return to the normal again.