Welcome to HAL
We are pharmacologists, chemists, and HIV experts who develop, validate, and analyze measurements of pharmaceutical compounds in hair.
Our Services
We offer a highly sensitive assay for detecting antiretroviral medications in human hair using liquid chromatography-tandem mass spectrometry (LC-MS/MS) methods.
Our Team
Meet our pharmacologists, chemists, and HIV experts!

Why hair analysis is useful

Human hair grows at a consistent rate, and each segment stores pharmaceuticals, hormones, nutrients, and toxins circulating in the body over a specific period. Our tests can assess:

  • How consistently a patient takes their medications over an extended period
  • The development of toxicities due to long-term exposure

Advantages of testing hair instead of blood for medication adherence

  • Identify average exposure over a long period of time
  • Noninvasive
  • Nonbiohazardous
  • No phlebotomy
  • No need for temperature control of samples