A/C Diagnostics provides unique 510(k)-cleared diagnostic kits for homocysteine (HCY) and related analytes, vitamin B6 and cysteine (CYS). These tests run on a chemistry platform including automatic and portable analyzers. A/C Diagnostics’ kits are the most sensitive, accurate and economical available. The HCY test requires only 5 µl plasma which can be obtained in a finger stick. The vitamin B6 and CYS tests are the only non-radioactive and non-HPLC tests available.