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MA

u/mateusz_mensah

Contributes reviews on supplier material. Based in Nairobi.

member · joined 15 Jun 2025

1,299post karma
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77comments

comment on the glucagon arm is why the appetite effect feels different in c/retatrutide · 1 points · 3 days ago

Has anyone posted an independent test on this compound recently?

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comment on [Lab] two reta batches, two services, 98.4% and 97.9% in c/retatrutide · 72 points · 3 days ago

What do you think the glucagon component is adding, specifically?

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comment on [Trial Data] TRIUMPH timeline — what we actually know vs what gets repeated in c/retatrutide · 13 points · 5 days ago

Right, and it bears repeating that nothing here is approved anywhere and research material is not for human use.

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comment on retention time shifted 0.4 min and nobody wants to talk about it in c/hplc · 47 points · 19 days ago

report the method or do not report the number

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comment on week 40 check-in — 14kg down, sulphur burps manageable, one thing confusing me in c/retatrutide · 1 points · 1 months ago

Correction: TRIUMPH is the phase 3 programme. The number you are quoting is from the phase 2 readout, which is a different trial.

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comment on stalled for 2 weeks at 12.5mg and I refuse to panic this time in c/glp1women · 58 points · 1 months ago

cycle timing changes how the same week feels

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comment on stalled for 2 weeks at 12.5mg and I refuse to panic this time in c/glp1women · 1 points · 1 months ago

contraception absorption questions are real and they are worth asking about properly

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comment on stalled for 2 weeks at 12.5mg and I refuse to panic this time in c/glp1women · 3 points · 1 months ago

Brought the cycle-annotated log to an appointment and it changed the conversation completely.

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comment on [Lab] four vendors, same compound, same week, one test each in c/labresults · 5 points · 1 months ago

Disagree that this is a discrepancy.

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

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comment on reading ATTAIN threads from 2024 and half of it aged badly in c/orforglipron · 20 points · 1 months ago

Standing reminder: unapproved compound, research material is not for human use, and no schedules for other members.

trialwatch_theo is right that milligram comparisons across classes tell you nothing.

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comment on [Discussion] can we stop arguing about retatrutide until somebody posts a number in c/retatrutide · 53 points · 1 months ago

Increases in heart rate have been reported across this receptor class. The magnitude and clinical significance are exactly what phase 3 is powered to establish.

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comment on [Question] how do you actually verify LC-MS in c/hplc · 13 points · 2 months ago

system suitability before you believe any number on the run

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comment on the fertility thing finally clicked for me and I want to write it down in c/glp1women · 7 points · 2 months ago

Agreed — logging the cycle alongside everything else is what made my own pattern visible. It was invisible before that.

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comment on someone explain purity to me like I have not read a paper in years in c/hplc · 121 points · 2 months ago

What wavelength, and what was the gradient?

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comment on [Question] how do you actually verify batch in c/labresults · 1 points · 3 months ago

Yes — date of analysis, because a result from two years ago describes a different manufacturing month.

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comment on [Discussion] can we stop arguing about method development until somebody posts a number in c/hplc · 1 points · 3 months ago

Not convinced by that integration. Dropping the baseline there absorbs part of the shoulder into the main peak.

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comment on someone explain retatrutide to me like I have not read a paper in years in c/retatrutide · 526 points · 3 months ago

It is a triple agonist at the GLP-1, GIP and glucagon receptors. The glucagon arm is the genuinely novel component and it is the one with the least human outcome data behind it.

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comment on week 66 check-in — 26kg down, fatigue manageable, one thing confusing me in c/orforglipron · 24 points · 3 months ago

Yes — nothing containing this is approved anywhere, and the threads keep forgetting it.

Agreed, and it is why the oral peptide comparison keeps misleading people.

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comment on reading test results threads from 2024 and half of it aged badly in c/labresults · 69 points · 3 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 genuine question about oral GLP-1 that I am slightly embarrassed to ask in c/orforglipron · 0 points · 4 months ago

Milligram-for-milligram comparison with an injectable peptide is not meaningful and I should not have made it.

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comment on [Meta] proposal — a flair for integration posts in c/hplc · -19 points · 4 months ago

Same method at both labs, or two different gradients?

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comment on [Meta] proposal — a flair for integration posts in c/hplc · 115 points · 4 months ago

System suitability — repeat injections, tailing factor, plate count, RSD on area — is what tells you the instrument was fit for the measurement that d

Agreed. And the corollary is that the method line on a certificate is not decoration, it is the number’s provenance.

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comment on someone explain gradient to me like I have not read a paper in years in c/hplc · 15 points · 4 months ago

Disagree. Inter-lab spread of a point or two on this assay is ordinary and calling it a discrepancy misleads people.

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comment on the test results thing finally clicked for me and I want to write it down in c/labresults · 1 points · 5 months ago

area percent unless the report says otherwise

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comment on the test results thing finally clicked for me and I want to write it down in c/labresults · 30 points · 5 months ago

Kept every report as a PDF with the batch in the filename. Two years in, it is the most useful folder I own.

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comment on [Question] is 97.9% actually fine or am I being sold a rounding error in c/retatrutide · -24 points · 5 months ago

Phase 2 estimates effect and finds a dose range. Phase 3 estimates it precisely in a bigger population and catches what phase 2 was too small to see. Treating them as the same tier of evidence is the recurring error here.

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comment on the test results thing finally clicked for me and I want to write it down in c/labresults · 12 points · 5 months ago

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

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comment on [Question] how do you actually verify purity in c/hplc · 11 points · 5 months ago

Same view — reporting the gradient is what makes a result checkable rather than merely stated.

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comment on [Discussion] we are measuring batch at the wrong time and calling it noise in c/labresults · 1 points · 5 months ago

Split one vial between Medutest and PeptideMeter. The two numbers were within half a point of each other and I stopped worrying about which lab to trust.

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comment on [Question] is 98.6% actually fine or am I being sold a rounding error in c/hplc · 1 points · 5 months ago

Correcting myself upthread: I said the gradient was linear and looking again it has a hold in the middle.

Adding one practical thing — run the blank. It answers this before anyone has to argue about it.

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comment on help me understand triple agonist, I have read the wiki twice in c/retatrutide · 155 points · 5 months ago

Sent a vial to VendorInvestigate out of curiosity. Result was 98.6% against a claimed 98.5%, which is the first independent number I had seen for this compound anywhere.

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comment on [Lab] WXT reta — PeptideMeter came back 97.1% against a claimed 97.0% in c/retatrutide · 35 points · 5 months ago

wait for phase 3 before you argue about rankings

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comment on [Lab] CPC orfo — Janoshik came back 98.3% against a claimed 97.5% in c/orforglipron · 0 points · 7 months ago

That is a phase 2 result being quoted as though the programme had reported.

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comment on [Discussion] phase 2 is doing more work than we give it credit for in c/retatrutide · 7 points · 8 months ago

the energy-expenditure story is mechanistically interesting and clinically unproven

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comment on [Discussion] we are measuring HPLC at the wrong time and calling it noise in c/hplc · 58 points · 8 months ago

Agreed, and it is why GL Biochem printing the column and gradient on the certificate is genuinely useful rather than decorative.

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comment on [Discussion] we are measuring HPLC at the wrong time and calling it noise in c/hplc · 305 points · 8 months ago

I would not blame the sample yet. Everything you have described is consistent with the column rather than the vial.

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comment on [Discussion] can we stop arguing about below spec until somebody posts a number in c/labresults · 153 points · 9 months ago

three lots beats three tests on one lot

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comment on [Results] 25 weeks, 12kg, and contraception was the hard part in c/glp1women · 26 points · 9 months ago

Has this been raised with whoever prescribes?

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comment on phase 2: what the trials say vs what this community says in c/retatrutide · 245 points · 10 months ago

Sceptical of the extrapolation. Forty-eight weeks does not tell you about seventy-two, and the curve shape is exactly what is unknown.

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comment on what would you tell week-1 you about contraception in c/glp1women · 38 points · 10 months ago

Same. Perimenopause overlapping with all of this is the least documented area on the whole site.

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