Seeing that there are volunteers online, I would like to ask you what volunteers need to pay attention to when doing cosmetic testing.

This depends on the project, and the precautions for each project will be different. Tell me about my experience. I have been to a third-party testing company called Hangzhou Huazhuang Technology to evaluate the efficacy of cosmetics before, and I have experienced being a volunteer once. At that time, the staff told me that in order to ensure the standard operation, scientific process and accurate data, the general testers should stay in the laboratory environment with constant temperature and humidity, and they should not leave the laboratory all the time, and the tested parts should be exposed all the time, and the cover should not be covered; Also comply with the requirements of the staff, use the test products truthfully, and give feedback according to regulations; If the subject has any allergy and discomfort during the use and testing of the product, he should immediately tell the staff, then stop the test and wash the test site with plenty of water. However, there is no threshold for volunteering. I'm just curious and want to try. I can test after registering and screening basic projects. Moreover, the staff of Huazhuang Laboratory are also very professional, rigorous and caring, and will communicate with us at any time. It is very safe and reliable. It seems that they have been recruiting volunteers. The landlord can consult if he is interested. I think it's good.