accepting samples · q2 · 2026

Know what's in your vial.

We are a small chromatography lab run by volunteers. We test DIY HRT for concentration and identity, including estradiol valerate, enanthate, cypionate, and a handful of others. You mail us a few drops. We give you back a result you can trust.

Always free for the person sending the vial. Anonymous by default. Run by trans people, for trans people. Individuals and DIY producers both welcome.

no. 412
a few quick facts —
cost to you
nothing. $0.
per-run materials
about $60, funded by donations
identity required
none. a sample code only
turnaround
1 week from receiving
methods
hplc-uv
who runs it
volunteers, trans & friends
tests we chose to run

Public results, in the open.

Now and then we buy a product ourselves — the same way a customer would — and run it through the same method we use on everything else. The results get posted with no editing and no advance notice to the source.

see public results →
source   Lab A● posted publicly
estradiol valerate 40 mg/mL · oil
claimed
40 mg/mL
measured
39.4 mg/mL
identity
confirmed
match
yes · ±2%
“bought off the shelf, tested blind, posted as-is.”
a recent result, anonymised

What you get back.

A number, a chromatogram, a plain-language read of whether the vial matches what the producer claimed. No prescriptions, no advice — just the measurement.

look up a result →
code   7k2-mourn-19● result ready
estradiol valerate · tR 5.12
claimed
40 mg/mL
measured
39.6 mg/mL
identity
confirmed
match
yes · ±1%
“within tolerance. clean trace. nothing unexpected above 0.1%.”
— volunteer note, reviewed by two
— anonymous
no legal names, no addresses. sample codes are the only thing we keep. mail from wherever you like.
— free, always
donations and small grants cover the $60 per-run cost. you pay nothing. we never sell data.
— for the community
run by and for trans people. both individual submitters and DIY producers are welcome to test.
with thanks

Someone funded your test.
You can fund the next one.

$60 covers one full result. Anything less helps too — a bottle of solvent, a pair of vials, a share.