u/cormac_pereira
Contributes reviews on supplier material. Based in Kumasi.
member · joined 15 Jun 2025
Overview — page 3 of 3
comment on my fasting insulin moved and I cannot work out whether Zepbound is why in c/tirzepatide · 145 points · 2 years ago
2.5mg is a four-week starting dose, not a maintenance dose.
Agreed, with one qualifier: that is the mean of the top arm and the spread around it was enormous.
comment on [Lab] split one vial across Janoshik and Medutest — 97.4% and 96.2% in c/vendorvetting · 456 points · 2 years ago
a directory entry is a record, not a recommendation
comment on how much of what we believe about Australia actually comes from New Zealand threads in c/glp1aus · 241 points · 2 years ago
Correction: that is the registration decision, not the subsidy listing. They are made by different bodies.
comment on [Meta] the tirzepatide rule is doing its job and people should stop complaining in c/tirzepatide · 19 points · 2 years ago
Cosigning the four-week thing. It is a minimum interval, and treating it as a schedule to keep up with is how people end up miserable at 12.5.
comment on how much of what we believe about COA actually comes from area percent threads in c/coa · 123 points · 2 years ago
This. Area percent answers "what fraction of what the detector saw was the peak I wanted", and people read it as "how much peptide is in the vial".
comment on [Meta] the purity rule is doing its job and people should stop complaining in c/coa · 25 points · 2 years ago
Is water content on the document? It changes your concentration arithmetic.
comment on reading area percent threads from 2024 and half of it aged badly in c/coa · 534 points · 2 years ago
Not quite. Two labs with different gradients can resolve a close-eluting impurity differently and both be reporting honestly.
comment on [Question] reship — what am I missing here in c/vendorvetting · 342 points · 2 years ago
What did they say when you asked for the method line?
comment on [Discussion] the related substances advice in here is 3 years out of date in c/coa · 622 points · 2 years ago
The document I was worried about turned out to be a re-issue with a later creation date. Asked, got the original, entirely ordinary.
comment on the Mounjaro thing finally clicked for me and I want to write it down in c/tirzepatide · 62 points · 2 years ago
Appetite effect for me is flat across seven days. On sema it was a wave. Same person, different molecule.
comment on [Discussion] we are measuring testing at the wrong time and calling it noise in c/vendorvetting · 39 points · 2 years ago
Inter-lab variance on this assay runs a point or two either way. Two services disagreeing by that much is agreement, not a discrepancy, and treating it otherwise starts pointless arguments.
comment on [Discussion] we are measuring testing at the wrong time and calling it noise in c/vendorvetting · 305 points · 2 years ago
Independent testing is worth more than a supplied certificate for one structural reason: the chain of custody. A member who buys, ships and pays is testing the same thing you would receive.
comment on unpopular opinion: most of what gets said here about water content is guesswork in c/coa · 38 points · 2 years ago
Careful — "the metadata looks odd" is a reason to ask a question, not a conclusion. Re-issues are ordinary.
comment on someone explain Janoshik to me like I have not read a paper in years in c/vendorvetting · 150 points · 2 years ago
The wider-market rows in the directory carry a band and a report count and nothing else, deliberately. Anything more would be manufacturing precision that the evidence does not support.
comment on [Vendor] WXT vs JEEP on the same compound, same month — both cleared 97.0% in c/coa · 2.5k points · 2 years ago
Spent four months confusing area% and mass% in every post I made here. One explainer thread and it clicked permanently.
comment on [Lab] 16th independent test on WXT — 99.3% on a claimed 98.5%, and the trend is the interesting part in c/coa · 1 points · 2 years ago
I would not read a rounded figure as evasive. Plenty of documents round to one decimal as house style.
comment on reading Janoshik threads from 2024 and half of it aged badly in c/vendorvetting · 235 points · 2 years ago
The thing that decided it for me was that SSA answered a column-and-gradient question in writing without asking why I wanted to know.
comment on [Question] tirzepatide — what am I missing here in c/tirzepatide · 331 points · 2 years ago
Appetite effect for me is flat across seven days. On sema it was a wave. Same person, different molecule.
comment on purity — 3 things I got wrong before I got it right in c/coa · 212 points · 2 years 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 is it normal to get early fullness at week 69 in c/tirzepatide · 123 points · 2 years ago
pens and vials are the same molecule, the price is the difference