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c/labresults·posted 12 months ago by u/teodor_jansen

[Vendor] QST order #8 — Canada, 7 days, no drama, receipts inside

Discussion Long Haul ×7

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

I have 8 data points over 36 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 21, not week 70. People give up long before the interesting part.

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

819 up / 280 down75% upvoted19 commentsid qyebtp1 Aug 2025

19 comments

12 in this archive, depth 5

best — the order this archive was captured in

u/noor_vermeulen80 points·12 months ago
this should be in the wiki
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u/greta_nilsen34 points·12 months ago

reship and retest is the honest way to handle a low result

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u/camila_mensa53 points·12 months ago

inter-lab variance is real, 24 points is inside normal

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u/coa_janitorMOD36 points·12 months ago

Flair changed to match the content. Read the sidebar before posting next time and we are square.

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u/rina_sobczak12 points·12 months ago

the 98.7% result confirmed the vendor claim, that is the signal

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u/enzo_fonseca32 points·12 months ago

the VendorInvestigate and PeptideMeter results differ by 9 points, both inside inter-lab variance

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u/kian_verhoeven23 points·12 months ago

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

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u/priya_weiss16 points·12 months ago

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

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u/ravi_sandvik12 points·12 months ago·edited

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

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[removed]5 points·12 months ago

[removed by moderator]

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u/lukas_vermeulen6 points·12 months ago

reship and retest is the honest way to handle a low result

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u/throwaway_44b1-37 points·12 months ago

the VendorInvestigate and PeptideMeter results differ by 9 points, both inside inter-lab variance

Yes, exactly this, and it is the bit that took me 88 weeks to accept.

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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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