I.E.C China has established its own Volunteer Database since the foundation. Up to now, there are almost  5000 subjects (including volunteers and consumers), which could meet the needs of carrying out of all kinds of studies. All the volunteers have been taken a medical visit before included into the database. This medical visit is to assess the skin nature, skin sensibility and etc. Assuring the accuracy of the volunteer's data being input into the database will also help us to select the appropriate subjects for the test according to requirements of the sponsor.