For laboratory research use only. Not for human or veterinary consumption.

RETA-3 Vial 10 mg Lot RETA10-008: Certificate of Analysis (COA)

Peptira · tested Feb 10, 2026 by Freedom Diagnostics · Older lot

HPLC purity
99.95%
Identity (LC-MS)
Mass identified as GLP RT
Test date
Feb 10, 2026
This is an older lot. The most recent COA for this product is lot RETA10-008. Check the lot number printed on your vial label and open the matching page.

This page summarizes the third-party lab report for lot RETA10-008 of RETA-3 Vial 10 mg sold by Peptira. The lot number on this page should match the lot printed on the vial label. Don't rely on this summary alone: use the button to open the lab's own record and compare the lot, date and results.

Lot-matchedResults are tied to lot RETA10-008, not to the product in general.
Outside labTested by Freedom Diagnostics, not by the vendor or by us.
Checkable at the sourceSearch Code links to the lab's own record.
Original documentThe vendor's copy of the COA is shown below, unedited.

RETA-3 Vial 10 mg lot RETA10-008 test results, explained

Every result printed on this certificate, as reported by Freedom Diagnostics, with a plain-English note on what the test measures. "Pass" and "specification" wording comes from the certificate; where the lab prints no pass/fail, we say so.

TestResult on the certificateWhat it measuresThis lot
HPLC purity99.95% · Per-vial HPLC purity: 99.92%, 99.95%, 99.97%HPLC separates the sample into its components; purity is the share of the detected signal that sits in the main peak. On its own it doesn't show which molecule that peak is. That's what the identity test is for.No pass/fail printed; reported value at or above 98%
Identity (LC-MS)Mass identified as GLP RTMass spectrometry measures the molecular mass of what's in the vial and compares it with the declared compound. "Confirmed" means the lab found the expected compound.Reported as matching the declared compound
Quantity (measured content)11.20 mg (mean)How much peptide the lab measured in the vial, compared with the amount printed on the label.112% of the 10 mg label amount
AppearanceWhite Lyophilized PowderWhat the lab recorded before testing: the colour and physical form of the material.Recorded

Lot and report details

Lot / batch numberRETA10-008
Product (as labeled by vendor)RETA-3 Vial 10 mg
Labeled vial size10 mg
Testing laboratoryFreedom Diagnostics
Sample received by labFeb 6, 2026
Report dateFeb 10, 2026
Method (as stated)HPLC with UV detection coupled with mass spectrometry (LC-MS)
Search CodePept2602060141
Lab-record checkOn Oct 7, 2026 the vendor's PDF was byte-for-byte identical to the copy hosted on the lab's site.
VendorPeptira
VerifyOpen Freedom Diagnostics's record ↗

Data notes: Lab received 02/06/2026, reported 2/10/2026 (MM/DD/YYYY).

The certificate itself

Page 1 of the certificate of analysis for RETA-3 Vial 10 mg lot RETA10-008 (Freedom Diagnostics)
Page 1 of the certificate (Peptira (vendor's copy)), saved here as an image so the page stays fast. Open the original PDF ↗ · Source ↗

About Freedom Diagnostics

A peptide testing lab in Franklin, Tennessee (per the lab's website) that publishes its certificates in a searchable online database.

Accreditation: No accreditation is printed on these certificates, and we found no published ISO/IEC 17025 accreditation for the lab (checked Oct 7, 2026).

Tests: On the certificates here: HPLC purity with LC-MS identity, net content and, where ordered, endotoxin (LAL), a microbial PCR screen and other screens.

How to verify: Search the Search Code on freedomdiagnosticstesting.com. The lab hosts its own PDF copy of each certificate, which should match the vendor's copy.

Open Freedom Diagnostics's record ↗

Lab info from: freedomdiagnosticstesting.com · checked Oct 7, 2026.

RETA-3 Vial 10 mg lot history at Peptira

All 10 certificates we have for this product from Peptira, newest first. The chart plots HPLC purity by report date (lots without a purity figure are left out). This lot is highlighted.

95%96%97%98%99%100%98%RETA10-001: 99.42% (Jun 29, 2025)RETA10-002: 99.73% (Sep 1, 2025)RETA10-003: 99.941% (Sep 12, 2025)RETA10-004: 99.822% (Oct 10, 2025)RETA10-005: 99.802% (Dec 26, 2025)RETA10-006: 99.811% (Dec 31, 2025)RETA10-007: 99.86% (Jan 26, 2026)RETA10-008: 99.95% (Feb 10, 2026)RETA10-007: 99.92% (Feb 10, 2026)RETA10-008: 99.95% (Aug 4, 2026)Jun 29, 2025Aug 4, 2026
LotReport dateLabHPLC purity
RETA10-008 (8X)Aug 4, 2026Freedom Diagnostics99.95%
RETA10-008Feb 10, 2026Freedom Diagnostics99.95%
RETA10-007 (NEW LABEL)Feb 10, 2026Freedom Diagnostics99.92%
RETA10-007Jan 26, 2026Freedom Diagnostics99.86%
RETA10-006Dec 31, 2025Freedom Diagnostics99.81%
RETA10-005Dec 26, 2025Freedom Diagnostics99.80%
RETA10-004Oct 10, 2025Freedom Diagnostics99.82%
RETA10-003Sep 12, 2025Freedom Diagnostics99.94%
RETA10-002Sep 1, 2025Janoshik99.73%
RETA10-001Jun 29, 2025Janoshik99.42%

What to check on your vial

How to check this COA in under a minute

  1. Find the lot number on your vial label and confirm it reads RETA10-008.
  2. Open Freedom Diagnostics's record with the button above, or go to freedomdiagnosticstesting.com and enter Pept2602060141.
  3. Compare the lot number, test date, purity and identity result with the table above. They should be identical.
  4. New to COAs? Read How to read a peptide COA for what HPLC purity and mass spec identity mean.

Questions about lot RETA10-008

What HPLC purity did RETA-3 Vial 10 mg lot RETA10-008 test at?

Freedom Diagnostics reported 99.95% HPLC purity for lot RETA10-008 in a report dated Feb 10, 2026.

How do I verify the COA for lot RETA10-008?

Go to freedomdiagnosticstesting.com and enter the search code Pept2602060141. The lab's own record should show lot RETA10-008 with the same dates and results as this page.

Is lot RETA10-008 the newest RETA-3 Vial 10 mg lot from Peptira?

No. The most recent RETA-3 Vial 10 mg certificate we have from Peptira is lot RETA10-008. Your vial label tells you which lot you have.

Does this certificate apply to my vial?

Only if the lot number printed on your vial reads RETA10-008 exactly. A certificate of analysis covers one lot; it says nothing about other lots of the same product.

Other certificates for lot RETA10-008

Other lots and COAs

RETA-3 Vial 10 mg at Peptira

Lab-tested lot RETA10-008 · 99.95% HPLC purity · Freedom Diagnostics

Use code SKYLER for 10% off
Shop at Peptira ↗

Affiliate disclosure: We earn a commission if you buy through the vendor links on this page, at no extra cost to you. Peptides & Coffee is an independent COA reference and is not owned by or affiliated with the vendors or labs listed. Lab results are published by the vendors and labs; we link to each lab's own verification record so you can check them yourself. Stock and lots change: the vendor may be shipping a newer lot than the one on this page, so check your vial label.