Application of sunscreen preparations: a need to change the regulations.

Background/purpose: To achieve photoprotection indicated on the package of sunscreen products they should be used appropriately. As previously published data documented that people usually applied much less than the recommended dose, the current study was undertaken to assess whether a detailed instruction can improve the use of sunscreens.

Methods: A total of 105 volunteers were asked to apply sunscreen to the whole skin surface in the same way that they would do it before sun exposure.