Know what's in your vial.

We're a small, volunteer-run lab that tests DIY HRT. Mail us a small sample and we'll tell you what's in it and how much. Testing is free and anonymous.

Send a sample or read how it works.

How it works

  1. Request a code. Fill out a short form. We don't ask for your name.
  2. Mail your sample. About 0.5 mL of liquid or 50 mg of powder in a small sealed vial.
  3. We test it. We use HPLC-UV, and a second volunteer checks every result.
  4. Get your result. It's posted to a private page that only your code can open, usually within 2–4 weeks.

Already sent a sample? Look up your result.

Good to know

  • It's free for the person sending the sample.
  • You don't need to give your name, address or email.
  • Results take 2–4 weeks from when we receive your sample.
  • We're run by trans people, for trans people. Individuals and DIY producers are both welcome.
  • We also buy products ourselves and publish the results.
  • The site is also on Tor: artemisbtmq5s6ejogmuundqmiyhbn4vj5hrg2cqdflulvfdraeqhzqd.onion

Support the lab

Each test costs us about $60 in materials, and all of it is paid for by donations. Donate if you can.