The GSL Estrogen Urine Home Test Kit measures biomarkers: Estrone E1, Estradiol E2, Estrone sulfate and Estradiol sulfate. Samples are analyzed by advance and accurate Ultra Performance Liquid Chromatography attached with Mass Spectrometer (UPLC-MS/MS).

  • Advanced Accurate UPLC-MS Technology.
  • Very Affordable, 5 Estrogens per test, ~$10/estrogen-hormone.
  • Easy to Use.
  • Free Shipping.
  • FREE Returns , No questions asked. Keep the Report.