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u/cormac_pereira

Contributes reviews on supplier material. Based in Kumasi.

member · joined 15 Jun 2025

4,411post karma
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98comments

comment on [TGA] the 2024 compounding rule change closed a whole access route overnight in c/glp1aus · 2 points · 2 days ago

the price you pay depends on the listing status of your indication

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comment on TB-500 and Thymosin Beta-4 are not the same product and vendors know that in c/researchpeptides · 7 points · 3 days ago

This. Asking what reference standard was used separates a real analytical claim from a plausible-looking one.

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comment on same batch number showing up at two unrelated vendors. that is not a coincidence in c/vendorvetting · 17 points · 7 days 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.

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comment on [PSA] a vendor-supplied COA is a marketing document until someone else agrees with it in c/vendorvetting · 9 points · 9 days ago

NUPEPS Peptides shows up in threads constantly and has almost nothing on file

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comment on [Discussion] the compounding advice in here is 3 years out of date in c/glp1aus · 1 points · 11 days ago

I would not treat one pharmacy’s quote as the national price.

Adding the quickest step — ask the pharmacist to check the wholesaler.

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comment on compounded tirz pricing has doubled in my area in four months in c/tirzepatide · 38 points · 22 days ago

SURMOUNT-1 landed around 21% at 72 weeks on the top arm

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comment on compounded tirz pricing has doubled in my area in four months in c/tirzepatide · -18 points · 22 days ago

Does injection-site soreness follow the day after the shot, or is it spread across the week?

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comment on the Zepbound question that gets asked weekly, answered properly in c/tirzepatide · -18 points · 29 days ago

The thing nobody warned me about was how much of this is logistics — storing it, remembering it, the same day every week.

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comment on the Zepbound question that gets asked weekly, answered properly in c/tirzepatide · 9 points · 29 days ago

Which week did the appetite change actually land for you?

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comment on [Resolved] the QST batch dispute — vendor retested, numbers matched, my error in c/vendorvetting · 1 points · 1 months ago

That reads as a recommendation and the source pages deliberately are not.

ipamorelin_i is describing the batch record test and it is the fastest signal available before you spend anything.

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comment on [Results] 65 weeks on 15mg, full numbers, ask me anything boring in c/tirzepatide · 1 points · 1 months ago

zepbound and mounjaro are the same compound with different labels

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comment on New Zealand: shortage, and what it actually costs here in c/glp1aus · 1 points · 1 months ago

Careful, personal importation provisions are narrow and specific and the general version circulating here is wrong.

This is the distinction that makes the rest of the board legible.

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comment on [PSA] research peptides are not what most of this community thinks it is in c/researchpeptides · 30 points · 1 months ago

lead times on unusual lines are the thing to confirm up front

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comment on [Meta] the handling rule is doing its job and people should stop complaining in c/researchpeptides · 2 points · 1 months ago

a secretagogue and a fragment are not the same class of thing

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comment on am I the only one who found Mounjaro harder than the injections in c/tirzepatide · 327 points · 1 months ago

The distribution matters more than the mean. In the trial population the interquartile spread was wide enough that two honest people can have completely different runs on the same arm.

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comment on genuine question about secretagogue that I am slightly embarrassed to ask in c/researchpeptides · 9 points · 1 months ago

if nobody has tested it here, that is a fact about us, not the compound

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comment on [Meta] proposal — a flair for PBS posts in c/glp1aus · 1 points · 2 months ago

Yes — importing US threads into an Australian question produces confident nonsense every single time.

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comment on [Lab] split one vial across Medutest and Janoshik — 99.3% and 98.7% in c/tirzepatide · 1 points · 2 months ago

Yes — 10mg being a genuine landing place for a lot of people is underrated. There is no medal for 15.

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comment on [Meta] the vendor rule is doing its job and people should stop complaining in c/vendorvetting · 34 points · 2 months ago

three independent results beat thirty forum posts

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comment on [Meta] the vendor rule is doing its job and people should stop complaining in c/vendorvetting · 15 points · 2 months ago

Small fix — the figure you quoted is the claimed purity from the certificate, and the independent result was the higher of the two.

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comment on nobody warned me about muscle cramps and I would have liked the warning in c/tirzepatide · 46 points · 2 months ago

the nausea profile is genuinely gentler than people expect coming from sema

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comment on [PSA] certificate of analysis is not what most of this community thinks it is in c/coa · 13 points · 2 months ago

Not quite. Two labs with different gradients can resolve a close-eluting impurity differently and both be reporting honestly.

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comment on how much of what we believe about Janoshik actually comes from PeptideMeter threads in c/vendorvetting · 35 points · 2 months ago

Agreed on buying small first. The cost of a test is small next to the cost of committing to a supplier you have not checked.

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comment on [Discussion] we are measuring Zepbound at the wrong time and calling it noise in c/tirzepatide · 2 points · 2 months ago

the appetite effect is blunter than sema, in a good way, most weeks

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comment on [Lab] split one vial across Janoshik and Medutest — 99.2% and 96.2% in c/tirzepatide · 98 points · 3 months ago

pens and vials are the same molecule, the price is the difference

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comment on the VendorInvestigate question that gets asked weekly, answered properly in c/vendorvetting · 10 points · 3 months ago

Cosigning on lot matching. It sounds trivial and it predicts almost everything else about how an operation is run.

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comment on the VendorInvestigate question that gets asked weekly, answered properly in c/vendorvetting · 11 points · 3 months ago

That reads as a recommendation and the source pages deliberately are not. They are a record you use to make your own decision.

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comment on [PSA] VendorInvestigate results are area% by default and people keep forgetting in c/tirzepatide · 15 points · 3 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.

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comment on [Lab] QSC BPC — Janoshik came back 98.7% against a claimed 98.5% in c/coa · 7 points · 4 months ago

UV at 214nm sees the peptide bond and picks up almost everything; at 280nm you are looking at aromatics only. Which wavelength the number came from is part of the number.

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comment on the testing thing finally clicked for me and I want to write it down in c/vendorvetting · 114 points · 4 months ago

consistency across lots beats one spectacular result

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comment on how much of what we believe about New Zealand actually comes from compounding threads in c/glp1aus · 9 points · 4 months ago

Not convinced. That is the New Zealand position and the thread is asking about Australia.

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comment on reading secretagogue threads from 2024 and half of it aged badly in c/researchpeptides · 66 points · 5 months ago

research-use-only material is not approved for human use

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comment on related substances are the most under-discussed thing on this board in c/coa · 2 points · 5 months ago

post the whole document, not the headline number

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comment on unpopular opinion: most of what gets said here about COA is guesswork in c/coa · 223 points · 5 months ago

Careful — "the metadata looks odd" is a reason to ask a question, not a conclusion. Re-issues are ordinary.

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comment on how much of what we believe about reship actually comes from Janoshik threads in c/vendorvetting · 178 points · 6 months ago

Did you ask for the batch-specific certificate, or the generic one?

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comment on the Medutest thing finally clicked for me and I want to write it down in c/vendorvetting · 1 points · 6 months ago

I would separate documentation from logistics. A supplier can be excellent at one and ordinary at the other, and averaging them hides it.

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comment on the Medutest thing finally clicked for me and I want to write it down in c/vendorvetting · 2 points · 6 months ago

Agree. The verification log is the part with the checkable facts in it; the number at the top is just a summary of a lot of averaging.

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comment on how much of what we believe about GIP actually comes from SURMOUNT threads in c/tirzepatide · 128 points · 6 months ago

Does food noise follow the day after the shot, or is it spread across the week?

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Cake day 15 Jun 2025
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Janoshik Analytical

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

janoshik.com
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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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