There are a variety of organic compounds though cannot be defined as true vitamins, which are related to the function of vitamins. Generally speaking, they can be sufficiently synthesized by humans and are not required in the daily diet. With integrated a set of separation, characterization, identification and quantification systems featured with excellent robustness & reproducibility, high and ultra-sensitivity, Creative Proteomics provides reliable, rapid and cost-effective vitamins and vitamin-like compounds targeted metabolomics services.