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✓ Purity · passShop-provided sample

Oxytocin × Precisely Peptides — lab test, May 2026

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Tested · submitted by Peptigrity Team Member 02PEPTIGRITY TEAM
Sample source: shop-provided. The shop chose and sent this vial. The Trust Score counts it like any other published test; who sourced the vial is shown so you can weigh it yourself.How we weigh evidence →
HPLC Purity
99.27%
✓ Excellent purity only
Counts toward Precisely Peptides's Trust Score until 13 May 2028
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Independent verification available

Vanguard 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.

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Test results

6 data points
Purity
99.27%
Endotoxins
Not tested
Sterility
Not on file
Heavy metals
Not tested
Stated qty
5 mg
Tested qty
4.99 mg
Qty match
100% of labeled · +0%
Batch / Lot
PP412-26-001
Tested by
Vanguard LaboratoryView profile →

Not on file for this certificate: endotoxins, sterility and heavy metals. A 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 Oxytocin from Precisely Peptides, performed by Vanguard Laboratory on May 13, 2026. Reported purity: 99.27%. Net content: 4.99 mg against 5 mg labeled (100% of label). Batch PP412-26-001. Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document
Issued by Vanguard Laboratory · May 13, 2026 · Batch PP412-26-001

Related lab tests

8 tests

The 64 other Oxytocin tests on Peptigrity range from 95.45% to 99.93%. This one sits at 99.27%.

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