HomeLab Tests verified peptides, PT-141
Purity · passShop-provided sample

PT-141 × verified peptides — lab test, January 2026

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Tested · submitted by Peptigrity Team Member 02PEPTIGRITY TEAM
Sample source: shop-provided. The shop chose and sent this vial. Samples bought at retail by a member carry more weight.How we weigh evidence →
HPLC Purity
99.79%
Excellent purity only
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Independent verification available

Janoshik Labs publishes a public verification portal. Any test attributed to this lab can be looked up and confirmed directly with the lab — so this result doesn't rest on our review alone.

This certificate carries no lookup code.

Test results

6 data points
Purity
99.79%
Endotoxins
Not tested
Heavy metals
Not tested
Stated qty
12 mg
Tested qty
11.61 mg
Qty match
97% of labeled · -3%
Batch / Lot
PT01261210I
Tested by
Janoshik LabsView profile →

This is a purity and identity analysis. Sterility, endotoxins, and heavy metals were not screened — a high purity figure says nothing about those.

About this test

What’s in the vial

Label 12 mg · Lab measured 11.61 mg

97% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 2.9 mg using the measured mass, against 3 mg on the label — 3% less.

One vial from this lot was weighed by the laboratory, not yours. This page reports what the certificate says; it does not recommend a dose.

Independent HPLC purity analysis of PT-141 from verified peptides, performed by Janoshik Labs on January 15, 2026. Reported purity: 99.79%. Net content: 11.61 mg against 12 mg labeled (97% of label). Batch PT01261210I. Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document
Issued by Janoshik Labs · Jan 15, 2026 · Batch PT01261210I

Other lots of PT-141 from verified peptides

LotTestedLabPurityvs labelStatus
PT03261310J25 Feb 2026Janoshik Labs99.919%100%Unverified
04-25-0910F8 May 2025Janoshik Labs99.614%117%Unverified
07-24-0710G6 Sept 2024Janoshik Labs99.925%119%Unverified
05-24-0510E30 May 2024Janoshik Labs99.97%112%Unverified
10423C17 Nov 2023Janoshik Labs99.927%101%Unverified
07564B13 Nov 2022Janoshik Labs99.894%111%Unverified
16834A1 Mar 2021Janoshik Labs99.748%93%Unverified

Batches this shop has published a certificate for, newest first. A lot whose printed value cannot identify a batch is not listed.

Related lab tests

8 tests

The 260 other PT-141 tests on Peptigrity range from 97.00% to 99.98%. This one sits at 99.79%.

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