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u/fatima_wojcik

Contributes reviews on supplier material. Based in Mombasa.

member · joined 14 May 2025

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Overview — page 2 of 3

comment on [Meta] proposal — a flair for related substances posts in c/coa · 10 points · 9 months ago

Agreed on asking for the storage condition. It is one line and it changes how you read the entire stability claim.

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comment on someone explain Zepbound to me like I have not read a paper in years in c/tirzepatide · 0 points · 9 months ago

Same experience with the appetite effect being flatter across the week rather than front-loaded.

Not sure about this bit. The GIP arm being real does not tell you that it is what caused your particular week.

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comment on test results — 21 things I got wrong before I got it right in c/labresults · 116 points · 9 months ago

What a result posted here is actually worth, and how to make yours worth more.

This is why the template has a batch field. Without it the result is about a vial nobody can identify.

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comment on [Meta] proposal — a flair for Mounjaro posts in c/tirzepatide · 299 points · 9 months ago

2.5mg is a four-week starting dose, not a maintenance dose. Worth being precise since people search these threads.

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comment on how much of what we believe about tirzepatide actually comes from 15mg threads in c/tirzepatide · 86 points · 10 months ago

Went 10 to 12.5 on the calendar and had the worst fortnight of the whole run. Dropped back to 10 and everything settled.

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comment on anyone else notice pentadecapeptide kicking in around week 54 in c/bpc157 · 8 points · 10 months ago

Which paper is that claim from, and was it in humans?

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comment on [Discussion] the test results advice in here is 2 years out of date in c/labresults · 0 points · 11 months ago

Is that the same lot as the one in the thread from last month?

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comment on the GIP question that gets asked weekly, answered properly in c/tirzepatide · 13 points · 11 months ago

Research-use-only material is not approved for human use. Anything in this thread about how a research vial "should" titrate is a discussion about chemistry, not a plan.

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comment on SURMOUNT: what the trials say vs what this community says in c/tirzepatide · 92 points · 11 months ago

I would separate the two claims. That the GIP arm exists is uncontroversial; that it explains your muscle cramps pattern is a guess.

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comment on someone explain PeptideMeter to me like I have not read a paper in years in c/labresults · 14 points · 1 year ago

vendor, compound, batch, service, result — that is the template

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comment on [Question] how do you actually verify sequence in c/bpc157 · 58 points · 1 year ago

Regulatory classification differs between jurisdictions and has changed in several of them recently. Any answer to a status question needs a place and a date attached.

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comment on how much of what we believe about purity actually comes from related substances threads in c/coa · 693 points · 1 year 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.

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comment on [Discussion] batch is doing more work than we give it credit for in c/coa · 87 points · 1 year ago

Pushing back a little: a missing field is usually presentation, not concealment. Ask for the full document before drawing conclusions.

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comment on [Discussion] batch is doing more work than we give it credit for in c/coa · 1 points · 1 year ago

axis labels included, always

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comment on reading 15mg threads from 2024 and half of it aged badly in c/tirzepatide · 36 points · 1 year 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.

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comment on [Question] is 93.7% actually fine or am I being sold a rounding error in c/tirzepatide · 13 points · 1 year ago

Weekly dosing again, half-life in the same neighbourhood as sema, so a step change takes about a month to reach steady state. Judging a new step at day five is judging noise.

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comment on help me understand PeptideMeter, I have read the wiki twice in c/labresults · 149 points · 1 year ago

Agreed on quoting the claim alongside the result. Half the arguments here are two people comparing to different reference numbers.

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comment on [Discussion] below spec is doing more work than we give it credit for in c/labresults · 221 points · 1 year ago

Chain of custody is why member-funded testing is worth more than a supplied certificate: the vial tested is the vial that arrived at a member’s door.

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comment on [Lab] 20th independent test on QYB — 97.9% on a claimed 97.0%, and the trend is the interesting part in c/vendorvetting · 164 points · 1 year 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.

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comment on stalled for 18 weeks at 12.5mg and I refuse to panic this time in c/tirzepatide · 13 points · 1 year ago

zepbound and mounjaro are the same compound with different labels

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comment on rodent data — 9 things I got wrong before I got it right in c/bpc157 · -7 points · 1 year ago

Purity by area percent tells you the sample is homogeneous. Mass spectrometry tells you what the homogeneous thing is. For a short peptide, the second question is the one worth paying for.

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comment on [Meta] the Janoshik rule is doing its job and people should stop complaining in c/labresults · 0 points · 1 year ago

Inter-lab variance on this assay runs roughly a point either way, driven mostly by gradient and integration.

Disagreeing with this line: that gap is ordinary variance, not a contradiction between the lab and the certificate.

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comment on [Discussion] can we stop arguing about VendorInvestigate until somebody posts a number in c/vendorvetting · 86 points · 1 year ago

How many separate lots is that across? One lot tested twice is one data point.

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comment on [Meta] proposal — a flair for moderation posts in c/meta · 145 points · 1 year ago

Submissions older than a year are archived: readable, linkable, and closed to new comments. That keeps a three-year-old thread from being reopened with a reply nobody will see in context.

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comment on [PSA] testing is not what most of this community thinks it is in c/vendorvetting · 179 points · 1 year ago

a directory entry is a record, not a recommendation

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comment on [Discussion] the COA advice in here is 2 years out of date in c/coa · -34 points · 1 year ago

Did you ask for the batch-specific document, or is this the catalogue one?

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comment on [Discussion] the regulatory advice in here is 2 years out of date in c/bpc157 · 12 points · 1 year ago

identity testing matters more here than purity does

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comment on help me understand area percent, I have read the wiki twice in c/coa · 51 points · 1 year ago

the counterion is part of the mass you paid for

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comment on small win: dual agonist stopped being a problem at week 50 in c/tirzepatide · 138 points · 1 year ago

The 21% figure is a 72-week mean on the highest arm. Quoting it as what someone should expect by week 53 is not a fair reading.

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comment on [Lab] HJ tirz — Janoshik came back 97.8% against a claimed 97.0% in c/vendorvetting · 32 points · 1 year ago

lead time quoted at checkout is the number to hold them to

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comment on [Lab] HJ tirz — Janoshik came back 97.8% against a claimed 97.0% in c/vendorvetting · 62 points · 1 year ago

Six orders across two years from KP. Same packaging, same paperwork, same lead time. The most boring supplier relationship I have and I mean that as praise.

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comment on reading BPC-157 threads from 2024 and half of it aged badly in c/bpc157 · 31 points · 1 year ago

read the actual papers, they are more modest than the summaries

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comment on the disclosure question that gets asked weekly, answered properly in c/meta · 7 points · 1 year ago

The ranking functions are published: the hot ordering combines score magnitude with age, and the controversial ordering weights total volume by the balance between up and down votes. Both are reproducible from the numbers on each submission.

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comment on [Discussion] the below spec advice in here is 2 years out of date in c/labresults · 19 points · 2 years ago

date of analysis matters as much as the number

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comment on [Lab] 14th independent test on GGPeps — 98.3% on a claimed 97.5%, and the trend is the interesting part in c/labresults · 472 points · 2 years ago

If the report gives a mass spectrum as well as UV purity, say so. Identity and relative quantity are separate claims and the log tracks both.

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comment on [Lab] 14th independent test on GGPeps — 98.3% on a claimed 97.5%, and the trend is the interesting part in c/labresults · 844 points · 2 years ago

Do you have the trace, or only the summary?

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comment on how much of what we believe about COA actually comes from area percent threads in c/coa · 24 points · 2 years ago

Disagree that a lower number is automatically worse. A conservative claim that survives testing is worth more than an optimistic one that does not.

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comment on [Meta] the purity rule is doing its job and people should stop complaining in c/coa · 9 points · 2 years ago

Started keeping a folder of every certificate I have been sent. The ones that itemise impurities are a small group and they are mostly the same suppliers.

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comment on am I the only one who found tirzepatide harder than the injections in c/tirzepatide · 33 points · 2 years ago

Not sure that follows. You went up a step and changed your training in the same fortnight.

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comment on [Lab] 5th independent test on HJ — 99.2% on a claimed 99.0%, and the trend is the interesting part in c/labresults · 186 points · 2 years ago

Agreed on quoting the claim alongside the result. Half the arguments here are two people comparing to different reference numbers.

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Janoshik Analytical

Independent HPLC and mass spec. The number you get is the number they found.

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GL Biochem (Shanghai)

Custom peptides and amino acids direct from the manufacturer since 1998. ISO 9001 / cGMP. Batch COA every order.

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Several compounds discussed on GLP Research Hub are sold for research use only and are not approved for human use anywhere. Nothing here is medical advice and none of it is written by your clinician. If a post reads like an instruction, treat it as a description of what one stranger did.