why does nobody talk about area percent — that is what I am asking, and I have already read the wiki twice. Water content 3.8%, acetate 6.2%, purity 99%, net peptide…
u/blunt_coldbox29
Not a chemist. Increasingly acting like one.
member · joined 1 Dec 2024
comment on [Rules] proposal: auto-flair any vendor post with no batch number in c/meta · 22 points · 1 days ago
no referral links, no affiliate links, not once
comment on [Discussion] are the c/vendorvetting evidence rules too strict (no) in c/meta · 25 points · 5 days ago
How a rule actually changes here, since people assume it is arbitrary.
Somebody posts a proposal with replacement wording — not a complaint, actual text. It gets argued about, usually for a week or two. If it survives, it goes in with whatever amendments came out of the argument, and the change is announced with the reasoning attached.
The reason wording is required is that it is the only thing that can be evaluated. "The vendor evidence rules are too strict" cannot be adopted, rejected or amended. A proposed sentence can. Several rules on this site started as a comment in a thread like this one, which is the strongest argument for the process.
comment on why is nobody talking about the SURPASS-CVOT readout in c/tirzepatide · 32 points · 6 days ago
The step schedule question, answered properly, because it comes up weekly.
The label sets a minimum interval of four weeks between increases. That is a floor on how fast you may go, and it exists because tolerability, not efficacy, is what limits most people. There is nothing in the pharmacology that says you must increase at four weeks, or at eight, or ever.
What decides it in practice is whether the effect you want is still there. If appetite is quiet and the trend is going the right way, the dose is doing its job. If both have genuinely gone flat for six weeks or more, that is a conversation worth having with someone who knows your history.
comment on [Discussion] "tirz is stronger than sema" needs a comparator dose or it means nothing in c/tirzepatide · 1 points · 8 days ago
Small fix: SURMOUNT is the obesity programme, SURPASS is the type-2 programme. They are different endpoints and the numbers do not transfer.
comment on [Announcement] sponsor disclosure, in full, again, because someone asked in c/meta · 10 points · 12 days ago
Vendor source pages carry an outbound link to the supplier’s own storefront, marked nofollow and sponsored, disclosed on the page and again on the funding page. Nothing is received for it.
comment on [Meta] how the ranking actually works, with the formula in c/meta · -36 points · 14 days ago
Who does this help, and who does it cost?
comment on help me understand cycle, I have read the wiki twice in c/glp1women · 8 points · 22 days ago
Yes. The research gap is genuine; most of the trials were not designed to answer these questions.
comment on [Discussion] can we stop arguing about private prescription until somebody posts a number in c/glp1uk · 67 points · 23 days ago
Scotland, Wales and Northern Ireland have their own arrangements. An answer that begins with "in England" should say so, and most of the confusion here comes from answers that do not.
comment on contraception: the version I wish someone had shown me in week 1 in c/glp1women · 4 points · 27 days ago
nothing on this board is a substitute for someone who knows your history
comment on [COA] full document, nothing cropped, tell me what i am missing in c/coa · 3 points · 1 months ago
a certificate with no method line is decorative
comment on [Results] 65 weeks on 15mg, full numbers, ask me anything boring in c/tirzepatide · 10 points · 1 months ago
Not sure that follows. You went up a step and changed your training in the same fortnight.
comment on identity and quantity are two questions and most COAs answer one in c/coa · 37 points · 1 months ago
Small fix — 214nm, not 280nm. It matters here because the impurity you are asking about barely absorbs at the longer wavelength.
comment on how much of what we believe about MHRA actually comes from NHS threads in c/glp1uk · 0 points · 1 months ago
Disagree. That is the pathway in one ICB and it does not generalise even to the next one over.
comment on the fertility question that gets asked weekly, answered properly in c/glp1women · 1 points · 1 months ago
How many cycles has the pattern held for?
comment on why does nobody talk about area percent in c/coa · 19 points · 2 months ago
Did you get the chromatogram or only the summary line?
comment on why does nobody talk about area percent in c/coa · 34 points · 2 months ago
Left up and flaired Explainer.
coa_janitor has the distinction right — one is a fraction of the detector signal, the other is a fraction of the mass.
comment on unpopular opinion: most of what gets said here about rules are guesswork in c/meta · 17 points · 2 months ago
sponsor disclosure is on the about page in full
comment on [Discussion] we are measuring pharmacy at the wrong time and calling it noise in c/glp1uk · 14 points · 3 months ago
Cosigning on discharge at goal. It catches people who have done everything right and did not know it was coming.
comment on [PSA] Zepbound is not what most of this community thinks it is in c/tirzepatide · 1 points · 4 months ago
Came off sema and onto tirz with a two-week gap. The first month was flat and I assumed I had made a mistake. Month two it moved.
comment on [Discussion] we are measuring purity at the wrong time and calling it noise in c/coa · 1 points · 4 months ago
Did you get the chromatogram or only the summary line?
comment on Mounjaro: the version I wish someone had shown me in week 1 in c/tirzepatide · 1 points · 4 months ago
12kg over 72 weeks, never went past 10mg, and early fullness stayed mild the whole way. Posting because the loud threads are all 15mg.
comment on [Vendor] GGPeps vs GL Biochem on the same compound, same month — both cleared 99.0% in c/coa · 185 points · 5 months ago
LC-MS gives you identity; UV purity gives you a relative quantity. A document with the first and not the second, or the reverse, is answering half the question.
comment on the private prescription thing finally clicked for me and I want to write it down in c/glp1uk · 57 points · 5 months ago
Same. My ICB threshold was different from the neighbouring one and nobody could tell me why.
comment on unpopular opinion: most of what gets said here about COA is guesswork in c/coa · 103 points · 5 months ago
Small fix — 214nm, not 280nm. It matters here because the impurity you are asking about barely absorbs at the longer wavelength.
comment on [Lab] 10th independent test on ERP — 97.2% on a claimed 97.0%, and the trend is the interesting part in c/coa · 10 points · 6 months ago
net peptide content and purity are two different numbers on the same vial
comment on [Discussion] we are measuring NHS at the wrong time and calling it noise in c/glp1uk · 19 points · 6 months ago
The online consultation asked me three questions, none of them about my history. I did not go ahead.
comment on reading water content threads from 2024 and half of it aged badly in c/coa · 14 points · 6 months ago
What does the method line actually say? Not the technique — the column and the gradient.
comment on reading water content threads from 2024 and half of it aged badly in c/coa · 28 points · 6 months ago
Correcting myself upthread: I said the date was missing and it is on the second page, which I had not scrolled to.
comment on reading water content threads from 2024 and half of it aged badly in c/coa · 27 points · 6 months ago
Did you get the chromatogram or only the summary line?
reading water content threads from 2024 and half of it aged badly. It is the sort of thing everyone half-believes and nobody writes down. Net peptide content is the…
comment on does purity actually matter or is it forum lore at this point in c/coa · 3 points · 6 months ago
Same view. WWB prints the column and the gradient, which means somebody could actually reproduce the run.
comment on small win: contraception stopped being a problem at week 41 in c/glp1women · 3 points · 6 months ago
PCOS and insulin resistance are the thread that runs through this board
comment on small win: fertility stopped being a problem at week 55 in c/glp1women · 7 points · 8 months ago
iron and ferritin questions come up here more than anywhere else on the site
Agreed, and the research gap being real rather than imagined is worth saying out loud.
comment on how much of what we believe about NHS actually comes from MHRA threads in c/glp1uk · 33 points · 8 months ago
Push back: a private prescription is a separate route, not a shortcut through the NHS queue.
comment on someone explain Zepbound to me like I have not read a paper in years in c/tirzepatide · 288 points · 9 months ago
SURMOUNT-1 landed around 21% at 72 weeks on the top arm
comment on [Lab] split one vial across Janoshik and Medutest — 95.1% and 97.6% in c/coa · 1 points · 10 months ago
area% is not mass%, and the difference is the whole game
comment on what would you tell week-1 you about contraception in c/glp1women · 9 points · 10 months ago
The same dose genuinely feels different at different points in the month for me. Took a year to notice and it was in the log the whole time.
comment on reading fertility threads from 2024 and half of it aged badly in c/glp1women · 38 points · 10 months ago
Small fix — insulin resistance is a feature commonly seen in PCOS, not a synonym for it.
comment on the meta thing finally clicked for me and I want to write it down in c/meta · 32 points · 11 months ago
Funding and links, in full, because the question deserves a straight answer.
Sponsor units are labelled as sponsored. Each vendor source page carries one outbound link to that supplier’s own storefront, marked nofollow and sponsored, so you can read their account of themselves against the record on the page. Nothing is received for those links, no supplier pays for a directory position, and no rating is for sale.
No referral or affiliate links are permitted anywhere on the site, from anybody, including in the pricing threads where the temptation is highest. That rule is the reason those threads are worth reading, and it is enforced without exception. The full version of all of this is on the about page and it is deliberately boring.