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LU

u/lukas_vermeulen

Contributes reviews on supplier material. Based in Oulu.

member · joined 16 Jul 2025

4,333post karma
1,946comment karma
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57comments

comment on [Below Spec] 61.2% on a vial that shipped with a 99% COA in c/labresults · 1 points · 9 days ago

This.

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] the compounding gap was a symptom, not a solution in c/compounding · 3 points · 10 days ago

Who is the prescriber, and are they the same organisation as the pharmacy?

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comment on switched from compounded to brand and the titration reset itself in c/compounding · 1 points · 20 days ago

What is the beyond-use date and what is it based on?

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comment on [Below Spec] 88% is not "basically fine" and i am tired of that reply in c/labresults · 1 points · 21 days ago

Area percent or net peptide content?

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comment on [Below Spec] 88% is not "basically fine" and i am tired of that reply in c/labresults · 26 points · 23 days 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 [PeptideMeter] ERP tirz 15mg — 98.4% and a very clean trace in c/labresults · 1 points · 1 months ago

Small fix — same supplier, different lot. The two rows in the log are not the same batch.

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comment on [Discussion] the telehealth advice in here is 3 years out of date in c/compounding · 15 points · 1 months ago

That is not what patient-specific means. It refers to the prescription, not to a customisation of the formula.

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comment on [Below Spec] 94.1% with a 1.8% single impurity. is that the des-amido in c/labresults · 7 points · 1 months ago

Push back: three tests on one lot is one lot. It tells you about that lot and almost nothing about the next one.

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comment on why does nobody talk about telehealth in c/compounding · 4 points · 1 months ago

Did they name the facility?

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comment on genuine question about lost money that I am slightly embarrassed to ask in c/darkspot · 41 points · 2 months ago

the thing that went wrong is usually procedural, not dramatic

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comment on [Discussion] can we stop arguing about cycle until somebody posts a number in c/glp1women · -31 points · 2 months ago

symptom patterns can track the cycle rather than the dose

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comment on does below spec actually matter or is it forum lore at this point in c/darkspot · 37 points · 2 months ago

going up too fast is the most repeated regret on this board

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comment on state board — 3 things I got wrong before I got it right in c/compounding · 5 points · 2 months ago

That figure is the starting material purity, not the finished preparation potency. Two different tests.

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comment on [Question] how do you actually verify batch in c/labresults · 5 points · 3 months ago

A series across separate lots estimates a process. Repeat tests on one lot estimate the measurement. Both are useful and they answer different questions.

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comment on [Question] how do you actually verify batch in c/labresults · 3 points · 3 months ago

This. The trend across separate lots is the number that tells you about a process rather than a vial.

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comment on [Lab] TFC cagri — Janoshik came back 98.1% against a claimed 98.0% in c/cagrilintide · 54 points · 3 months ago

Amylin is co-secreted with insulin and acts on satiety and gastric emptying through its own receptor complexes. An amylin analogue is therefore not a variant of an incretin agonist — it is a different signalling axis.

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comment on Canada: API source, and what it actually costs here in c/compounding · 26 points · 4 months ago

Same view. If the intake asked you nothing, the intake was a formality and you should factor that in.

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comment on [PSA] regret is not what most of this community thinks it is in c/darkspot · 16 points · 4 months ago

somebody will read this at the point you were at, and it will help

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comment on [Results] 17 weeks, 6kg, and cagrilintide was the hard part in c/cagrilintide · 136 points · 6 months ago

amylin and GLP-1 are not redundant pathways

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comment on [Results] 17 weeks, 6kg, and cagrilintide was the hard part in c/cagrilintide · 1 points · 6 months ago

Monotherapy arm or combination arm?

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comment on unpopular opinion: most of what gets said here about test results are guesswork in c/labresults · 70 points · 6 months ago

The template is vendor, compound, batch, service, claim, result, and who paid. Every one of those fields exists because a result missing it has been argued about here before.

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comment on [Results] 17 weeks, 6kg, and cagrilintide was the hard part in c/cagrilintide · 186 points · 6 months ago

phase 3 data will change most of what gets said here

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comment on [Discussion] we are measuring telehealth at the wrong time and calling it noise in c/compounding · 3 points · 6 months ago

What concentration is on the label, and does it match what you were expecting?

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comment on [Discussion] we are measuring telehealth at the wrong time and calling it noise in c/compounding · 2 points · 6 months ago

Nothing in this thread is medical advice, and the choice between arrangements is one for you and a prescriber who knows your history.

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comment on [Lab] split one vial across VendorInvestigate and PeptideMeter — 99.1% and 96.8% in c/labresults · 22 points · 7 months ago

Cosigning on saying who paid. It is the whole basis on which this log is worth anything.

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comment on Medutest — 16 things I got wrong before I got it right in c/labresults · 6 points · 7 months ago

one result is a data point, agreement between two services is evidence

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comment on reading REDEFINE threads from 2024 and half of it aged badly in c/cagrilintide · 46 points · 7 months ago

Yes. The combination is where the interesting effect sizes are, and the monotherapy arms read very differently.

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comment on [Discussion] the shortage list advice in here is 3 years out of date in c/compounding · 35 points · 8 months ago

the shortage list is the whole legal hinge and people skip it

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comment on reading 503A threads from 2024 and half of it aged badly in c/compounding · 4 points · 11 months ago

hassan_chowdhury is right about the concentration trap.

Adding one thing — ask for the facility name. Most will give it, and the ones that will not have answered you.

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comment on [Discussion] the test results advice in here is 2 years out of date in c/labresults · 10 points · 11 months ago

Cosigning on saying who paid. It is the whole basis on which this log is worth anything.

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comment on [Discussion] the test results advice in here is 2 years out of date in c/labresults · 4 points · 11 months ago

Tested three lots over a year rather than three vials from one lot. Cost the same and told me something completely different.

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comment on someone explain fertility to me like I have not read a paper in years in c/glp1women · 60 points · 11 months ago

Same.

Agreed, and the research gap being real rather than imagined is worth saying out loud.

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comment on how much of what we believe about PeptideMeter actually comes from batch threads in c/labresults · 1 points · 12 months ago

Have now spent more on testing than on some of the orders. No regrets — the log is the reason I can buy without agonising.

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comment on three years of regret threads, summarised so you do not have to read them in c/darkspot · 0 points · 1 year ago

I would not generalise from one bad month to a rule. The rest of your process sounds fine.

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comment on someone explain telehealth to me like I have not read a paper in years in c/compounding · 8 points · 1 year ago

Paid noticeably more at one clinic than another for what turned out to be the same facility behind both.

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comment on genuine question about telehealth that I am slightly embarrassed to ask in c/compounding · -8 points · 1 year ago

salt forms are the recurring argument and the answer is boring

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comment on PeptideMeter is the most under-discussed thing on this board in c/labresults · 2 points · 1 year ago

one result is a data point, agreement between two services is evidence

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comment on [Question] Spain — has anyone got a straight answer on 503B in c/compounding · 30 points · 1 year ago

503A or 503B — do you know which?

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comment on [Question] Spain — has anyone got a straight answer on 503B in c/compounding · 6 points · 1 year ago

Small fix — 503B facilities register with the regulator; 503A pharmacies are licensed by the state board. Different mechanisms.

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comment on [Question] Spain — has anyone got a straight answer on 503B in c/compounding · 11 points · 1 year ago

Asked for the beyond-use date basis and got a real answer with a stability reference attached. Not universal, apparently.

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