Something I keep coming back to: testing is the most under-discussed thing on this board. Independent testing is worth more than a supplied certificate for one…
Top submissions — page 19
Positions 451–475 of 1,000 ranked submissions.
the SURPASS rule is doing its job and people should stop complaining, and here is what changes in practice if it goes ahead. SURMOUNT-1 ran 72 weeks with the top arm…
we are measuring certificate of analysis at the wrong time and calling it noise. Change my mind, genuinely — I have no stake in being right about this. Water content…
what changed for me between month 7 and month 12. I would rather ask a basic question now than get this wrong quietly for two months. Week 21 for me was completely flat…
PeptideMeter — community peptide analytics
Vendor-level purity averages over time, built from independent results rather than vendor claims. Transparent methodology, open dataset.
Browse resultsSlightly embarrassed to be asking this, but: can we stop arguing about bacteriostatic water until somebody posts a number. Spent 2 weeks confused about this until…
Asking properly rather than in a comment on somebody else’s thread: how do you actually verify method development. The system suitability argument, since it comes up…
goal — my 3-week log, condensed into one table. I have gone back and forth on this for months. Rate of change is not a virtue. Slower trajectories are as durable as…
someone explain 15mg to me like I have not read a paper in years — that is what I am asking, and I have already read the wiki twice. Hard numbers: 15mg. Anything softer…
how much of what we believe about API source actually comes from telehealth threads. I am not trying to be the "source?" guy. I would just like a source. Concentration…
can we stop arguing about HPLC until somebody posts a number. I am not trying to be the "source?" guy. I would just like a source. System suitability — repeat…
why does nobody talk about step therapy. Searched first, found three threads that contradict each other, hence the post. Step therapy requires documented trial of…
is 97.9% actually fine or am I being sold a rounding error. I will put the method line and the batch identifier up front because that is what makes this checkable.…
The one-line version is the title: why amino acid analysis catches the frauds HPLC misses. The rest is why. Carryover from a previous high-concentration injection looks…
The title is the argument: units are doing more work than we give it credit for. Here is the rest of it. Started reconstituting everything to a round concentration and…
7th independent test on WXT — 99.2% on a claimed 98.5%, and the trend is the interesting part. That is the headline. The document, the batch and the service are below…
Sigma-Aldrich — certified reference materials
Reference standards, analytical reagents and system-suitability material. If you are running your own method, start with a known.
Reference standardsthe stability rule is doing its job and people should stop complaining — posting the reasoning in public because a policy you cannot inspect is just a preference. On…
the ice pack thing finally clicked for me and I want to write it down. It is the sort of thing everyone half-believes and nobody writes down. Put a logger in three…
ice pack — 19 things I got wrong before I got it right. It is the sort of thing everyone half-believes and nobody writes down. Once in solution, the relevant risks are…
three years of dead space threads, summarised so you do not have to read them. Not a hot take, just something I have not seen said plainly here. Adding more water does…
SURPASS — 11 things I got wrong before I got it right. It is the sort of thing everyone half-believes and nobody writes down. A confidence interval is the range of…
The title is the argument: SURPASS — 15 things I got wrong before I got it right. Here is the rest of it. Discontinuation rates are a tolerability result. A trial with…
small win: goal weight stopped being a problem at week 85. Numbers below. Ask me the boring questions, they are the useful ones. Withdrawal studies in this class…
Homopeptide BPC — Medutest came back 98.6% against a claimed 98.0%. One vial, one service, one member paying, which is the only kind of result this board should treat…
reading SURMOUNT threads from 2024 and half of it aged badly. Making the case below, and I expect to lose some of it in the comments. Quoted a figure here confidently,…
Asking properly rather than in a comment on somebody else’s thread: how much of what we believe about concentration actually comes from mg/mL threads. Why "more water"…