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c/labresults·posted 3 months ago by u/kenji_kimani

[Question] PeptideMeter — what am I missing here

Lab Receipts ×6 Well Actually ×1 Cold Box ×1

Right, the purity question again, but with numbers this time.

I have 5 data points over 26 weeks. The pattern is consistent enough that I do not think it is chance, and boring enough that nobody is going to screenshot it, which is usually a good sign.

The thing I would flag for anyone new: the effect I am describing showed up at week 23, not week 72. People give up long before the interesting part.

Interested in whether this matches other people's logs or whether I am an outlier.

5,660 up / 1,959 down74% upvoted34 commentsid nd1gwp7 Apr 2026

34 comments

30 in this archive, depth 6

best — the order this archive was captured in

u/georgi_chowdhury456 points·3 months ago

BCH product, PeptideMeter test, 94.2% result, batch 22, 39 days in transit. Logged.

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u/milos_trevino222 points·3 months ago

The confident tone is doing a lot of work that the evidence is not.

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u/clara_weiss51 points·3 months ago

Which Medutest service and what method did they use?

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u/neha_rahimi13 points·3 months ago

Which Medutest service and what method did they use?

Counter-anecdote: opposite result, same dose. Which mostly tells us the variance is huge.

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u/hedda_aguirre-2 points·3 months ago

Is that 98.1% area or mass?

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u/kenji_kimaniOP-3 points·3 months ago

testing the vendor claim versus testing your actual vial are two different posts

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u/kavya_radich1 point·3 months ago·edited

below-spec results get logged, not dismissed

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u/jarno_cabrera1 point·3 months ago

Sceptical. If this were true we would see it reflected in the data and we do not.

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u/janoshik_junkieMOD1 point·3 months ago

Tracking number removed. It identifies both ends of a shipment.

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u/whois_wanda1 point·3 months ago

Edit to your parent would help — the concentration you quoted assumes one scenario and you have written another above it.

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u/ismael_nwosu1 point·3 months ago

do not editorialise in the title, put the number in the title and the opinion in the body

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u/teodor_jansen1 point·3 months ago

Edit to your parent would help — the concentration you quoted assumes one scenario and you have written another above it.

Counter-anecdote: opposite result, same dose. Which mostly tells us the variance is huge.

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u/priya_ogunleye1 point·3 months ago

below-spec results get logged, not dismissed

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u/kenji_kimaniOP1 point·3 months ago

Strongly agree. Below-spec results matter as much as good ones.

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u/lukas_vermeulen0 points·3 months ago

This is the "correlation is mechanism" thing again. You changed three variables at once.

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u/meera_sandvik181 points·3 months ago

template required: vendor / product / batch / service / method / result

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[deleted]72 points·3 months ago

[deleted]

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u/reship_roulette24 points·3 months ago

This result fits the template perfectly. Logged.

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u/rina_bergstrom126 points·3 months ago

Batch number? Date of test?

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u/due_diligence_dee65 points·3 months ago

inter-lab variance is real, 15 points is inside normal

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u/peptidemeter_pat0 points·3 months ago

sample of one, say so

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u/britta_boateng0 points·3 months ago

Slight fix: the number was 94.2, not 95.1. Decimal point, but a fairly consequential one.

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u/clara_weiss1 point·3 months ago

Not convinced. The evidence does not support that reading.

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u/greta_nilsen22 points·3 months ago

Yeah, the PeptideMeter number matching the claim is the actual signal.

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A running record of independent test results people paid for themselves. Every post follows the same shape: vendor, product, batch, testing service, method, and the number. Good results and bad results are equally welcome and get equal scrutiny.

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