Shenzhen BST Science&Technology Co., Ltd is located in Shenzhen City, China, found in 2007, we have ten years expierence in import and export. We have built long-term relationship with pharmaceutical companies and IVD companies. We supply fluorescent dye,enzyme substrate,chemiluminescent substrates, coenzymes, buffers. We have strong products for comestics such as bis-aminopropyl diglycol dimaleate, which is a active ingredient used used for hair waving or straightening, hair conditioning.