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c/labresults·posted 4 months ago by u/honest_syringe

why does nobody talk about PeptideMeter

Lab Cold Box ×4 Sourced ×2

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

I have 4 data points over 8 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 31, not week 80. People give up long before the interesting part.

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

2,587 up / 459 down85% upvoted51 commentsid riynt915 Mar 2026

51 comments

25 in this archive, depth 5

best — the order this archive was captured in

u/clara_weiss484 points·4 months ago

inter-lab variance is real, 16 points is inside normal

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u/coa_janitorMOD283 points·4 months ago

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

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u/britta_boateng320 points·4 months ago

Three years on this site and the questions have not changed at all. Which is depressing or reassuring depending on the day.

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u/medutest_mel105 points·4 months ago·edited

This result fits the template perfectly. Logged.

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u/coa_janitormod · c/coa-6 points·4 months ago

the VendorInvestigate and PeptideMeter results differ by 24 points, both inside inter-lab variance

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u/stubborn_batchlist_only-7 points·4 months ago

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

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u/coa_janitormod · c/coa1 point·4 months ago

below-spec results get logged, not dismissed

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u/katrin_diallo157 points·4 months ago

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

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u/wholesome_lurker47 points·4 months ago·edited

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

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u/priya_weiss194 points·4 months ago

the vial you ordered versus the vial you received might be different batches

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u/greta_nilsen161 points·4 months ago

Mechanistically the bit that matters is Janoshik. It explains most of the early profile and a decent chunk of the outcome.

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u/honest_syringe129 points·4 months ago·edited

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

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u/elise_ramos107 points·4 months ago

Small correction: the trial was 19 weeks, not 12. Does not change your point but people will quote it.

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u/teodor_jansen55 points·4 months ago

the VendorInvestigate and PeptideMeter results differ by 13 points, both inside inter-lab variance

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u/honest_syringeOP123 points·4 months ago

TFC product, Janoshik test, 96.2% result, batch 2, 37 days in transit. Logged.

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u/edit_for_clarity112 points·4 months ago

The practical rule people converge on is 28 days at fridge temperature after first puncture, and that comes from the preservative, not the peptide.

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u/kian_verhoeven46 points·4 months ago

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

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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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