Lab comparison · checked August 18, 2026

Peptide Test (peptidetest.com) vs Gold Standard Analytics.

A Michigan-based service running peptide analysis through a partner lab with US-pharma QC background, validated to USP/NF standards, with COA verification at verify.peptidetest.net. Here's how the two compare, using only each lab's published information — including where Peptide Test is genuinely the better fit.

	Peptide Test (peptidetest.com) PER PEPTIDETEST.COM · AUGUST 18, 2026	Gold Standard Analytics PUBLISHED PRICING · HOUSTON, TX
LOCATION	Michigan — testing by scientists at a partner laboratory	Houston, TX — one lab, walk-in or prepaid mail-in from all 50 states
METHODS	HPLC and UV; validation referenced to USP / NF standards	HPLC purity + LC-MS identity + net peptide content on every base COA; USP <85> endotoxin ($199), USP <71> sterility ($195), USP <232> heavy metals ($169) add-ons
PUBLISHED PRICING	Not on the homepage — shown through order pages	$189 base peptide COA (LC-MS identity + HPLC purity + net peptide content on one certificate); GLP-1 class $289
TURNAROUND	Not published on the homepage	5–7 business days standard; 48–72-hour expedited available
RESULTS	COA verification at verify.peptidetest.net	Every public COA in an open registry at /coa-lookup — QR-verifiable by accession number, no login
STANDARDS	Partner lab background in US pharmaceutical QC (per their site)	Operated to ISO 17025 expectations with GLP-style data integrity and video + photo chain of custody

HOW THIS COMPARISON WAS BUILT

This page is published by Gold Standard Analytics — we are one of the labs being compared, so read it knowing that. Every competitor fact above comes from that lab's public website, checked August 18, 2026, and may have changed since; confirm current pricing and terms with each lab directly. Spot an error? Email team@goldstandardanalytics.com and we'll correct it.

Where Peptide Test stands out

USP/NF-referenced validation and a stated US pharma-QC background are the right foundations.

A dedicated verification domain shows they take COA authenticity seriously.

Starter kits and supplies alongside testing lower the friction for first-time submitters.

Where Gold Standard differs

Our base certificate adds LC-MS identity confirmation and net peptide content to HPLC — identity by mass spec is the stronger identity check for peptides.

Published pricing on every panel and a public registry where any certificate resolves by accession number.

Full safety stack (endotoxin, sterility, heavy metals) plus video chain of custody on the same sample.

Straight answers

Peptide Test questions, answered honestly.

Is peptidetest.com the same as Janoshik?

No. Peptide Test (peptidetest.com) is a Michigan-based US service using a partner laboratory; Janoshik Analytical is a separate lab based in the Czech Republic. They are different companies with different verification systems.

How does Peptide Test compare to Gold Standard Analytics?

Both are US services with COA verification. Differences by published information (checked August 18, 2026): their homepage lists HPLC + UV methods with USP/NF validation and pricing via order pages; our base $189 COA bundles HPLC purity with LC-MS identity and net peptide content, with published pricing on every panel and a public no-login certificate registry.

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Don't take any lab's word for it.
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Every Gold Standard COA resolves in a public registry by accession number — your customers never have to trust a PDF.

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