[PeptideMeter] ERP tirz 15mg — 98.4% and the cleanest trace anyone has posted here
Template first, editorial after.
| Field | Value |
|---|---|
| Vendor | ERP |
| Product | Tirzepatide 15mg |
| Batch | ERP-2606 |
| Service | PeptideMeter |
| Claimed | 98.0% |
| Result | 98.4% |
The number is unremarkable. The trace is not. Flat baseline, one dominant peak, two tiny related substances exactly where you would expect them and nothing else above the noise. No shoulders, no unexplained peak at 4.2 minutes, no drift.
I have looked at a lot of traces this year and this is the tidiest. Which is a chemistry compliment, not a vendor endorsement — their support latency is a separate and worse story.
best — the order this archive was captured in
Agreed on the trace, and thank you for separating "nice chemistry" from "good vendor". Those get conflated constantly and they are genuinely independent variables.
Also worth flagging for anyone new: a clean trace is partly the sample and partly the method. A bad method can make good material look messy and a lazy one can hide real impurities under a wide peak.
The separate and worse story, for the record, is a 2025 fill-volume discrepancy that two of us reported on the same batch. They acknowledged the emails and then the thread simply stopped.
It is still marked unresolved on the source page and it will stay unresolved until somebody explains it. Good chemistry does not close an open item.
which is exactly why i put "separate and worse story" in the post. the trace does not absolve the paperwork.
And the packaging genuinely improved after community feedback, which is also logged. A vendor can be simultaneously getting better at one thing and stonewalling on another. Source pages exist to hold both facts at once.
2024 was foam and optimism. 2026 is a proper cold box with thermal mass. they listened, and I will say so as loudly as I complained.
the fact that both the complaint and the credit are on the same page is why i read these before i order.
post the trace. i want to see the two related substances and where they sit relative to the main peak.
it is in the c/hplc crosspost. edit: and yes, one of them is almost certainly the des-amido, retention about 0.4 min earlier, which is where it always is.
competitive pricing on the higher-strength vials is the other thing worth knowing about them.
"cleanest trace anyone has posted" is unfalsifiable puffery on a site with a hundred traces
completely fair, it is a subjective claim and i said so with the word "tidiest". if you have a cleaner one post it, i would genuinely like to look at it.
- 1The separate and worse story, for the record, is a 2025 fill-volume…5 comments in this branch · started by u/receipts_or_nothing