CIRS KEXIN Biotech is a professional third-party R&D organization in Hangzhou, China, established by C&K Testing from CIRS Group and Professor Jianxin Wu’s team from China Pharmaceutical University in 2022. CIRS KEXIN Biotech is providing scientific supports of cosmetic efficacy and claims for cosmetic ingredients and products. The services include in-vitro research of efficacy for cosmetic ingredients and products, in-depth research on in-vitro study method, cosmetic ingredient development and improvement, R&D consulting and etc. 

Combined with service capabilities from C&K Testing and CIRS Group, CIRS KEXIN Biotech is able to provide professional one-stop service covering the whole life-cycle of a personal care product, which includes cosmetic ingredient development, physical/chemical tests, in-vivo toxicological tests, toxicology risk assessment, in-vitro toxicological study, clinical efficacy study, in-vitro efficacy study, raw material registration, product registration and etc. 

Hangzhou C&K Testing Technic Co., Ltd. (C&K Testing), a wholly owned subsidiary of CIRS Group, is professional third-party testing company with an awarded title as National High-Tech Enterprise.  C&K Testing’s capabilities include hardlines testing lab, environmental testing lab, daily chemical testing lab, medical device testing lab, microbial testing lab (P2), toxicological testing lab and efficacy testing lab. C&K Testing also participated in the compilation of several national standards/ group standards and has a number of technical patents.