✓ Purity · pass✓ Lab-verifiedShop-provided sample

Tesamorelin × Silverstone Labs Co — lab test, May 2026

Name: Tesamorelin Purity Analysis - Silverstone Labs Co
Creator: ILS Laboratories
Published: 2026-05-19
License: https://creativecommons.org/licenses/by/4.0/

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Tested Tuesday, May 19, 2026 · 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

99.49%

✓ Excellent purity only

Counts toward Silverstone Labs Co's Trust Score until 19 May 2028

PeptideTesamorelin

BrandSilverstone Labs Co

LabILS Laboratories

See Silverstone Labs Co reviews & all 28 lab tests

↓ Download COA

Independently confirmed on the lab’s portal✓ Extra check

COA COA-2026-ZWPITH matches ILS Laboratories's public record. So this test doesn't rest on our review alone — the lab confirms it too.

Lookup codeRDDVANJK

Look it up on ILS Laboratories ↗Checked May 19, 2026

All 616 Tesamorelin lab tests →Tesamorelin prices Check another lot

Test results

8 data points

Purity

99.49%

Endotoxins

≤ 0.05 EU/mL

Sterility

Not on file

Heavy metals

ICP-MS per USP 233: all elements below limit (Pass)

Stated qty

10 mg

Tested qty

10.33 mg

Qty match

103% of labeled · +3%

Batch / Lot

TE10-0526

COA number

COA-2026-ZWPITH

Tested by

ILS LaboratoriesView profile →

Not on file for this certificate: sterility. A purity figure says nothing about that.

About this test

What’s in the vial

Label 10 mg · Lab measured 10.33 mg

103% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 2.6 mg using the measured mass, against 2.5 mg on the label — 3% more.

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.

Verification trail

Report number	COA-2026-ZWPITH
Portal lookup	✓ Lab-verified
Checked	7 Aug 2026date taken from the record, not from a logged check
Checked by	Peptigrity staff, against the lab's portal
PDF vs portal	ILS Laboratories's portal shows validity only
Weight	Counts as one lab test

Independent HPLC purity analysis of Tesamorelin from Silverstone Labs Co, performed by ILS Laboratories on May 19, 2026. Reported purity: 99.49%. Net content: 10.33 mg against 10 mg labeled (103% of label). Endotoxins: ≤ 0.05 EU/mL. Heavy metals: ICP-MS per USP 233: all elements below limit (Pass). Batch TE10-0526. Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document

Issued by ILS Laboratories · May 19, 2026 · Batch TE10-0526

Other lots of Tesamorelin from Silverstone Labs Co

Lot	Tested	Lab	Purity	vs label	Status
TB22-0726	24 Jun 2026	ILS Laboratories	99.61%	99%	✓ Lab-verified
TE20-0526	19 May 2026	ILS Laboratories	99.51%	104%	✓ Lab-verified
TE10-0126	28 Jan 2026	Freedom Diagnostics	99.331%	115%	✓ Lab-verified

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

7 tests

The 615 other Tesamorelin tests on Peptigrity range from 88.28% to 99.99%. This one sits at 99.49%.

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