vialroom

#lab-requests 2026-05-07

Thursday50 messages12 participantstimes are UTC
Highlights from this day
  • factory_direct_fi — we have never had a lab mix up a sample. we have had members mix up their own labelling twice 19:29
  • gradient_greg — powder if you can. reconstituted travels worse and adds a variable we cannot control turnaround has been between 6 days and twice that depending on the queue 19:40
  • tam_logs — send a capped syringe with enough for a rerun. the minimum is never enough if they need to repeat it 20:02
  • LC_MS_Lena — sorry to jump in two labs on the same lot is a luxury but it is how we learned what inter-lab variance looks like, i think 20:49
  • cleo_tests — do not send your only vial. that has happened twice and both times it hurt 21:30
RT

we publish the raw report. summaries hide the thing you needed to see, not advice obviously

GG

a code and a lot number on the syringe in permanent marker. that is the whole labelling requirement

how do we stop the pool telling us about the pool instead of my vial

keep half back

code not name

AT

Janoshik has been the fastest for us. PeptideMeter has been the most detailed. those are not the same lab

TL

send a capped syringe with enough for a rerun. the minimum is never enough if they need to repeat it

📉16👀10
AT

quantity is the test worth paying for. purity is usually fine and fill usually is not

chain of custody in hobby testing is weak and we say so in every writeup

publish the raw

🤝15🔥12

if you want to know about your vial, you have to submit your vial. that is the whole answer

the queue is posted and updated. if your code is not on it, it did not arrive
we have never had a lab mix up a sample. we have had members mix up their own labelling twice

YY

i keep half the sample back so there is something to send if the first one goes missing

PF

update on the earlier thing whats the wording on the customs declaration for a sample

YY

send powder

fridge-temps.csv
101 rows · not retained in the public archive

i would rather fund one careful quantity test than three purity tests

coming back after 18 months, is the submission process the same
roughly one sample in 9 rounds has gone missing in transit. budget for it emotionally

blinded obviously

sorry to jump in two labs on the same lot is a luxury but it is how we learned what inter-lab variance looks like, i think

10
CT

follow up anyone want to co-fund a quantity test on a lot i already own

declare it as an analytical reference sample with a low value. that is what it is

submissions go out blinded. the lab gets a code, not a supplier name. that removes one variable, it is not distrust

AD

the split works from about 9 people. below that everyone pays more than the test is worth

coming back to this i coordinate the round, collect the codes, and post every result including the dull ones

update from 13 months ago: the blinding process is unchanged and it has held up fine

AT

roughly one sample in 9 rounds has gone missing in transit. budget for it emotionally

CT

do not send your only vial. that has happened twice and both times it hurt

code  compound      submitted   status
R-01  semaglutide   2026-02-14  reported
R-02  tirzepatide   2026-02-14  reported
R-03  retatrutide   2026-02-16  in queue
R-04  reference std 2026-02-16  reported

*Medutest not the other one

LM

follow up are we blinding this one or does the lab know the source

LM

follow up we do not help with wording beyond that and the mods are strict about it

LM

a pooled result tells you about the pool. it does not tell you about your vial, n of 1 obviously

including a reference standard in the batch is the single best thing we ever added to this process
we publish the raw report. summaries hide the thing you needed to see

genuine question coordinating this round