Saliva provides a non-invasive sample that is commonplace in clinical trials. Saliva sample collection tubes manufactured by Jiangsu Changfeng Medical Industry Co., Ltd. are meant for use in such circumstances, where the sample’s integrity is crucial to the test’s accuracy. These special tubes are particularly useful for genetic testing and drug testing, as well as other diagnostic tests since they are made to withstand contamination and sample spoilage. Caring about present health management, our products are essential to improvement of the clinical trial performance quality and efficiency in other countries.