Peptidetesting

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Freedom Diagnostics Testing

freedomdiagnosticstesting.com

US lab focused on peptide purity, with a public certificate lookup and fast turnaround; widely used by vendors.

Listed from four separately substantiated review fields. See why

The lab is real and publicly traceable. We lack independent evidence for a stronger statement so far.

What it does not mean: this is not a verdict on measurement quality, on any single certificate, or on the safety of a product.

Can I get tested here?

Indicative price
On request
Location
Franklin, United States Americas

Why we say this

The overall assessment is not an average of these four fields. Each field answers a different question and cannot offset another.

Not publicly established

Who is behind the laboratory?

The public evidence does not currently establish a responsible issuer.

Boundary: Identity and responsibility do not establish analytical competence.

View 4 signals and their evidence
Signal profile - Counts show composition, not a score. Core evidence 0 Supporting evidence 0 Boundary 4 Contradiction 0
  • Neutral No business-register entry could be found. The laboratory does not claim one.
  • Neutral No officially registered business address found. The website lists Franklin, Tennessee, but this is not supported by any official registry source.
  • Neutral The laboratory names Sara B. Duff, but no independent source attributes that person to this laboratory.
  • Neutral Country of domicile cannot be clearly verified. United States is assumed based on .com domain and Tennessee reference, but not legally verified.
Partially substantiated

Is the procedure technically substantiated for peptides?

Specific method or process evidence exists, but the full method-by-matrix contract is not public.

Boundary: Lack of accreditation is normal here and is not a negative signal.

View 3 signals and their evidence
Signal profile - Counts show composition, not a score. Core evidence 0 Supporting evidence 1 Boundary 2 Contradiction 0
  • Positive The laboratory names concrete instrumentation: HPLC, Mass spectrometer.
  • Neutral No verifiable accreditation. For a laboratory that accepts private samples this is the norm, not a mark against it.
  • Neutral ISO 9001 is claimed, but no entry in the accreditation body's own register could be cited; the claim can neither be verified nor refuted.
Report confirmed Verification tested

Can a report be traced back through the issuer?

A specific report completed a laboratory-controlled issuer round trip. Starting from a real certificate of this laboratory, we followed the verification route printed on it back to the issuer, and it worked.

Boundary: Report confirmation establishes neither analytical competence nor the contents of an individual vial.

View 1 signal and its evidence
Signal profile - Counts show composition, not a score. Core evidence 1 Supporting evidence 0 Boundary 0 Contradiction 0
Method
Search by Search Code (first 4 chars of company name + accession number) or company name
Verification path
https://freedomdiagnosticstesting.com/?page_id=52
  • Positive Starting from a real certificate of this laboratory, its printed verification route was followed back to the issuer and it worked. The route is proven in use, not merely offered. This is evidence of report governance, not analytical competence.
Not publicly established

Has actual measurement performance been checked externally?

No suitable independent evidence of actual measurement performance was publicly established.

Boundary: Testimonials, report volume and average purity values are not external performance evidence.

No public signals in this review field.

Read our full reasoning

Reports from Freedom Diagnostics Testing carry a working verification mechanism, but the available public evidence does not yet independently corroborate the laboratory across multiple dimensions.

Who operates Freedom Diagnostics Testing and what does the laboratory disclose?

Freedom Diagnostics Testing presents itself as a laboratory offering peptide purity testing. The site lists a named director, Sara B. Duff, and discloses specific instrumentation, including HPLC and mass spectrometry. The laboratory explicitly offers testing for compounds such as BPC-157, TB-500, semaglutide, tirzepatide, and GLP-1 analogues, and issues certificates of analysis for these. The domain has been registered since February 2025.

How does the verification process work and what services are offered?

The laboratory operates an online COA verification portal at freedomdiagnosticstesting.com/?page_id=52. This portal was tested from a real certificate back to its issuer and proven to work, demonstrating report governance. This verification mechanism functions alongside the laboratory's stated testing services.

What are the limits of the public evidence for this laboratory?

The available independent corroboration remains narrow. The positive signals cluster around the laboratory's own verification process and its stated offerings. Broader independent public evidence, such as forum discussions, scientific references, press coverage, or independent attribution of named personnel, has not emerged to corroborate the laboratory's standing across multiple dimensions. No verifiable method-validation or current independent performance data for the relevant analytical methods and matrices could be found. No verifiable accreditation was found, which is normal for a laboratory accepting private samples and is not a mark against it. One concrete observation is a concentrated recommendation pattern: multiple peptide vendors and two review sites all name Freedom Diagnostics Testing as a preferred or exclusive testing provider, creating a one-sided recommendation concentration. No business-register entry, independently verified physical address, or independent attribution of the named lab director could be found.

How should you read this result?

These observations explain why the result is not yet Substantiated. The evidence limits and recommendation concentration are signals about breadth and not a finding of deficiency or a final verdict.

What this rests on

The material this assessment is built on.

Public information only
Registration, payment, verification
Payment
Card
Report verification
Reports verifiable online

People behind the lab

Sara B. Duff
Lab Director

Accreditation

ISO/IEC 17025: Not accredited BatchGuild lists Freedom Diagnostics Testing, PLLC (Franklin, TN) as 'ISO 17025: Not accredited' [4]. AminoVault could not verify an ISO-17025 certificate or accreditation directory listing [2]. No entry found in official accreditation body registers (ANAB, IAS, ILAC).

ISO 9001: Claimed, unverified Lab states 'Compliant with ISO 9001 Quality Management Principles' on its own website [5]. This is a compliance claim, not an accreditation claim. No certificate or registration body identified. ISO 9001 is a QMS standard, not a testing-laboratory competence accreditation.

GLP (Good Laboratory Practice): Claimed, unverified Lab states compliance with 'Good Laboratory Practice (GLP) Quality Standard Principles' [5]. This is a compliance claim, not an accreditation. GLP applies to non-clinical safety studies and is not equivalent to ISO/IEC 17025.

CLIA: Claimed, unverified CLIA number 14D2263999 listed by BatchGuild [4]. CLIA is a U.S. regulatory requirement for clinical testing, not equivalent to ISO/IEC 17025 for analytical testing competence.

Full evidence apparatus

What is tested - and with what

Methods & capabilities HPLC · chromatographyMass spectrometry · mass_spectrometry

Sources and public record

These signals describe access, the public trail and documents. They do not colour any of the four review fields.

Access and offering · 2
  • Positive The lab explicitly states it specializes in high-precision purity testing for research-use-only peptides, using HPLC and LC-MS, and provides COAs for peptides like BPC-157, TB-500, semaglutide, tirzepatide, and GLP-1 analogues.
  • Neutral No pricing information found on any page; payment authorization required before testing begins.
Public and digital trail · 3
  • Neutral Multiple vendors (Great Northern Peptides, Prosperity Peptides, Thrive Peptides) all name Freedom Diagnostics Testing as their exclusive third-party testing provider, while review sites Peptide Critic and PeptidesRated both independently recommend Freedom Diagnostics as a preferred or standard testing lab, forming a notably one-sided recommendation concentration around a single laboratory.
  • Neutral The provided sources contain no independent forum discussions, scientific references, press coverage, or enforcement records mentioning Freedom Diagnostics Testing by name. A Reddit thread on peptide testing does not reference the lab, and a ScamAdviser excerpt displays only the website tagline with no user reviews or trust ratings.
  • Neutral The domain freedomdiagnosticstesting.com was registered on 2025-02-14T21:56:33Z, making it 512 days old at the time of assessment.
Domain & digital trail
Domain registered
2025-02-14 (1.4 age)
Registrar
Automattic Inc.
TLS
Google Trust Services

Audit complete

Show all 72 sources

For lab operators

Run this lab? You can confirm the entry and correct it.

This profile is built from public sources and reviewed by hand. It shows where each fact comes from. A listing is a set of signals, not an endorsement or a verdict - and never a guarantee. Presence and order cannot be purchased.
Last reviewed: 2026-07-14