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Purity · passShop-provided sample

PT-141 × biolongevitylabs.com — lab test, April 2026

Sample label: BioLongevity Labs
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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
99.78%
Excellent purity only
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Independent verification available

MDx BioAnalytical Laboratory 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

8 data points
Purity
99.78%
Endotoxins
<0.05 EU/mL (PASS)
Heavy metals
Not tested
Stated qty
5 mg
Tested qty
4.99 mg
Qty match
100% of labeled · +0%
Batch / Lot
25-3-43136
Container
White Crystals
Tested by

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 5 mg · Lab measured 4.99 mg

100% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 1.3 mg on both the label figure and the measured one.

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 biolongevitylabs.com, performed by MDx BioAnalytical Laboratory on April 27, 2026. Reported purity: 99.78%. Net content: 4.99 mg against 5 mg labeled (100% of label). Endotoxins: <0.05 EU/mL (PASS). Batch 25-3-43136. Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document
Issued by MDx BioAnalytical Laboratory · Apr 27, 2026 · Batch 25-3-43136

Other lots of PT-141 from biolongevitylabs.com

LotTestedLabPurityvs labelStatus
25-3-4603527 Jan 2026BioRegen99.64%145%Unverified
25-3-459524 Nov 2025BioRegen99.85%104%Unverified
25-3-4593717 Oct 2025BioRegen99.93%125%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 99.78%.

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