How We Test Every Batch of Methylene Blue — And Why It Matters

How We Test Every Batch of Methylene Blue — And Why It Matters

"Lab tested" appears on almost every Methylene Blue product you'll find online. It's become standard language in this category — which means it's also become almost meaningless without context.

This post explains exactly what we test, who tests it, what the results actually tell you, and why we do it this way when we didn't have to.

The Testing Laboratory

Every batch of Waves of Wellbeing Methylene Blue 1% Solution is independently tested by the Charles Sturt University Environmental Analysis Laboratory (EAL), located in Wagga Wagga, New South Wales.

The EAL is a NATA-accredited laboratory. NATA is the National Association of Testing Authorities — Australia's peak accreditation body for laboratories and testing services. NATA accreditation means that a laboratory's technical competence, equipment, methods, and quality management systems have been independently assessed and verified against Australian and international standards. It's the benchmark that Australian government bodies, courts, and regulators rely on when they need to trust a test result.

We chose Charles Sturt University's EAL specifically because of its independence, its NATA accreditation, and because it operates entirely separately from any commercial interest in our products. The laboratory has no stake in our results. They test the sample we send them and report what they find.

We Are the Only Australian Methylene Blue Brand That Names Its Lab

We want to be direct about this because it matters.

You can search every other Australian Methylene Blue brand currently operating and you will not find one that publicly names the specific laboratory that independently tests their product. Some mention third-party testing. Some include a Certificate of Analysis. But none name the lab.

We name ours because we think that if you're going to claim independent testing, the natural next step is to name the laboratory — because naming it means it can be verified. Anyone can confirm that Charles Sturt University's Environmental Analysis Laboratory exists, is NATA-accredited, and operates independently. That verifiability is precisely the point.

If a brand claims independent testing but won't name the laboratory, it's fair to ask: why not?

What We Test For

Our batch testing covers three core areas:

Concentration

This confirms that the solution contains what it claims — a 1% Methylene Blue concentration (10 milligrams per millilitre). Concentration consistency matters for anyone relying on the product to behave predictably.

Purity

This confirms the quality and integrity of the Methylene Blue itself — that it meets pharmaceutical-grade specifications and isn't degraded or contaminated with related compounds.

Heavy Metals

This is the most important test for safety purposes, and the one most often absent from non-pharmaceutical testing protocols.

The synthesis of Methylene Blue naturally introduces metallic contaminants — particularly arsenic, lead, mercury, copper, and zinc. These metals come from reagents and reaction conditions involved in the synthesis process. In pharmaceutical-grade manufacturing, specific steps are taken to remove them, and then testing confirms they've been removed to below acceptable limits.

In non-pharmaceutical grades of Methylene Blue, heavy metals testing may never occur at all — because the product was never manufactured for human-contact applications.

Our testing confirms that heavy metals in each batch are below detectable limits or within acceptable safety specifications. These results are documented in our Certificate of Analysis.

Understanding the Certificate of Analysis

A Certificate of Analysis is the document that records the test results for a specific batch. It typically includes:

  • The batch or lot number
  • The testing laboratory and its accreditation
  • The tests performed and methods used
  • The results found
  • Whether each result passes or fails the specified limit
  • The signature of the responsible analyst

Our COA for each batch is signed by the testing analyst at Charles Sturt University EAL. It's a formal document from an accredited institution — not an internal quality document or a supplier's declaration.

A note on "below LoR" results: You may see results reported as "< LoR" on a COA. LoR stands for Limit of Reporting — the lowest concentration that the testing method can reliably measure. A result shown as < LoR means the substance was not detected at any level above the method's detection threshold. This is a good result — it means the contaminant, if present at all, is below the level the method can detect.

Every Batch — Not Just the First One

This is worth stating explicitly because it's not standard practice in this category.

Some brands test once — when they first launch a product — and then rely on ongoing supplier documentation for subsequent batches. Some test annually. Some test when asked.

We test every batch before it is made available to customers.

This matters because raw material quality can vary between production runs. The Methylene Blue synthesis process can yield different contaminant profiles at different times. Testing a launch batch in 2023 tells you about that batch. It tells you very little about what you're receiving in 2025.

Each batch we produce gets its own independent test. The COA on file is for that specific batch — not a historical reference document.

Why We Do This When We Didn't Have To

There's no regulatory requirement forcing us to test independently. We're not TGA-registered, and independent batch testing is above and beyond what's required for a product positioned outside the therapeutic goods framework.

We do it because we believe it's the right standard for a product in this category. Because the customers who buy from us are placing some degree of trust in us, and we think that trust deserves to be backed by something verifiable. Because "pharmaceutical grade" should mean something — and without independent verification, it's just a phrase.

It's also the thing that makes us genuinely different from every other Australian Methylene Blue brand. Not a logo or a story. An actual, verifiable, repeatable practice.

How to Request Our COA

If you'd like to see our Certificate of Analysis, you're welcome to reach out and request it. We're happy to share the testing documentation for the current batch.

We believe transparency at this level is part of what a trustworthy product in this space looks like. Ask us. We'll send it.

— The Waves of Wellbeing Team


This product is not registered with the TGA and is not intended to diagnose, treat, cure, or prevent any disease. Information provided is for educational purposes only.

Back to blog

Leave a comment