u/samir_falk
Contributes reviews on supplier material. Based in Medellín.
member · joined 11 Feb 2025
Comments — page 2 of 3
comment on three years of 15mg threads, summarised so you do not have to read them in c/tirzepatide · 385 points · 8 months ago
It is a dual GIP and GLP-1 receptor agonist, and the GIP arm is the part that has no equivalent in the semaglutide threads. That is why the side-effect profile reads differently rather than just milder.
comment on the formulary question that gets asked weekly, answered properly in c/glp1canada · 16 points · 9 months ago
Have you asked the pharmacist to check?
comment on does gradient actually matter or is it forum lore at this point in c/hplc · 36 points · 9 months ago
Resolution between two peaks depends on retention, selectivity and efficiency. A shallower gradient buys retention and usually resolution, at the cost of peak width and run time.
comment on [Meta] the EMS rule is doing its job and people should stop complaining in c/intlshipping · 118 points · 9 months ago
Asked Homopeptide which lines they hold regionally before ordering and got a straight list back. Changed what I ordered and when.
comment on what would you tell week-1 you about contraception in c/glp1women · 15 points · 10 months ago
Perimenopause and all of this at once, and there is essentially nothing written about the combination anywhere.
comment on reship — 19 things I got wrong before I got it right in c/intlshipping · 34 points · 11 months ago
Agreed on rigid packaging. It costs the shipper almost nothing and it predicts a lot about the rest of the operation.
comment on [Results] 24 weeks on 12.5mg, full numbers, ask me anything boring in c/glp1women · 2 points · 1 year ago
Have you asked a pharmacist about the absorption question specifically?
comment on help me understand SURMOUNT, I have read the wiki twice in c/tirzepatide · 59 points · 1 year ago
2.5mg is a four-week starting dose, not a maintenance dose. Worth being precise since people search these threads.
comment on help me understand SURMOUNT, I have read the wiki twice in c/tirzepatide · 112 points · 1 year ago
Which week did the appetite change actually land for you?
comment on reading 15mg threads from 2024 and half of it aged badly in c/tirzepatide · 59 points · 1 year ago
Disagree with the conversion table. There is no validated equivalence between the two molecules and posting one as though there is does real damage.
comment on 4 months in and hepatic fat is still the thing I get wrong in c/survodutide · 7 points · 1 year ago
Agreed. The hepatic programme is the point of this compound and the weight discussion is a side effect of the side effect.
comment on genuine question about dual agonist that I am slightly embarrassed to ask in c/survodutide · 193 points · 1 year ago
The honest evidence position, written out so this board does not drift.
Adding the standing caveat — unapproved compound, research material is not for human use.
comment on [Vendor] ERP vs SGN on the same compound, same month — both cleared 98.0% in c/tirzepatide · 92 points · 1 year ago
Agreed, and the trial number is a mean of a very wide distribution — the tails are enormous and nobody posts from the middle.
comment on [Lab] CPC cagri — Janoshik came back 98.1% against a claimed 97.5% in c/hplc · 177 points · 1 year ago
Resolution between two peaks depends on retention, selectivity and efficiency. A shallower gradient buys retention and usually resolution, at the cost of peak width and run time.
comment on 4 months in and MASH is still the thing I get wrong in c/survodutide · 19 points · 1 year ago
fibrosis improvement without worsening steatohepatitis is the phrase to learn
comment on why does nobody talk about gradient in c/hplc · 15 points · 1 year ago
Started reporting my own integrations with the baseline choice stated.
mass_spec_maggie is right — the integration choice is a decision and it should be stated alongside the result.
comment on why does nobody talk about gradient in c/hplc · -29 points · 1 year ago
baseline choice is a decision, not a measurement
comment on [Question] how do you actually verify cycle in c/glp1women · 26 points · 1 year ago
Yes — hair shedding tracks the rate of loss and it is temporary.
kaia_fonseca is right that a diagnosis and a finding are different things here.
comment on [Question] how do you actually verify cycle in c/glp1women · 13 points · 1 year ago
Correcting myself upthread: the shedding started at week 26 for me, not the week I gave.
comment on [Results] 47 weeks, 15kg, and GIP was the hard part in c/tirzepatide · 150 points · 1 year ago
It is a dual GIP and GLP-1 receptor agonist, and the GIP arm is the part that has no equivalent in the semaglutide threads. That is why the side-effect profile reads differently rather than just milder.
comment on the Canada thing finally clicked for me and I want to write it down in c/glp1canada · 12 points · 1 year ago
Employer-sponsored plans have their own criteria and appeal processes, independent of the provincial formulary. Which one applies determines everything about the route.
comment on genuine question about HPLC that I am slightly embarrassed to ask in c/hplc · 73 points · 1 year ago
you cannot report to two decimals off that baseline
comment on [Meta] proposal — a flair for shipping posts in c/intlshipping · 40 points · 1 year ago
Careful — the supplier does not control the last mile and most of your variance is in it.
comment on 15mg — my 12-week log, condensed into one table in c/tirzepatide · 187 points · 1 year ago
Correction to my own post above — I said 15mg and I have been on 10mg since the spring. Same argument, wrong number.
comment on reading MASH threads from 2024 and half of it aged badly in c/survodutide · 3 points · 1 year ago
Independent purity results for this compound are very sparse across the whole site, which means any impression about consistency is built on almost nothing.
comment on 7 months in and cycle is still the thing I get wrong in c/glp1women · 243 points · 1 year 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 [Discussion] dual agonist is doing more work than we give it credit for in c/tirzepatide · 5 points · 1 year ago
SURMOUNT-1 ran 72 weeks with the top arm around 21% mean body weight change. SURPASS is the diabetes programme and reports glycaemic endpoints, so quoting the two interchangeably is a category error.
comment on method development — 10 things I got wrong before I got it right in c/hplc · 19 points · 1 year ago
Do you have the mass, or only the UV trace?
comment on small win: dual agonist stopped being a problem at week 50 in c/tirzepatide · 167 points · 1 year ago
Disagree with the conversion table. There is no validated equivalence between the two molecules and posting one as though there is does real damage.
comment on reading chromatogram threads from 2024 and half of it aged badly in c/hplc · 96 points · 1 year ago
retention time alone is not identity
comment on formulary — 11 things I got wrong before I got it right in c/glp1canada · 36 points · 1 year ago
Push back: approval by the national regulator says nothing about whether any plan will pay.
comment on how much of what we believe about gradient actually comes from purity threads in c/hplc · 74 points · 1 year ago
That is area percent, not mass percent. The trace cannot give you the second one.
comment on [Discussion] the GIP advice in here is 2 years out of date in c/tirzepatide · 5 points · 1 year ago
Which week did the appetite change actually land for you?
comment on my ApoB moved and I cannot work out whether SURPASS is why in c/tirzepatide · 40 points · 2 years ago
Correction to my own post above — I said 10mg and I have been on 5mg since the spring. Same argument, wrong number.
comment on [Lab] 24th independent test on CPC — 97.6% on a claimed 97.0%, and the trend is the interesting part in c/hplc · 0 points · 2 years ago
Is that baseline drawn by the software or by hand?
comment on transit time — 12 things I got wrong before I got it right in c/intlshipping · 29 points · 2 years ago
Do they publish a reship policy, and did you read it before ordering?
comment on [Lab] 16th independent test on ERP — 97.4% on a claimed 97.0%, and the trend is the interesting part in c/hplc · 23 points · 2 years ago
Resolution between two peaks depends on retention, selectivity and efficiency.
Disagreeing with this bit: that spread is ordinary inter-lab variance, not a disagreement about the material.
comment on [Meta] the tirzepatide rule is doing its job and people should stop complaining in c/tirzepatide · 87 points · 2 years ago
Yes — 10mg being a genuine landing place for a lot of people is underrated. There is no medal for 15.
comment on reading transit time threads from 2024 and half of it aged badly in c/intlshipping · 31 points · 2 years ago
a quoted lead time you can hold them to is worth more than a fast one you cannot
comment on [Question] how do you actually verify gradient in c/hplc · 0 points · 2 years ago
That figure cannot be quoted to two decimals off that baseline. The precision is not in the data.