Independent laboratory certificate of analysis showing heavy metal testing for Millie's Moss sea moss

Certificate of Analysis (COA)

Tested for purity. Trusted with your routine. Every batch of our sea moss is independently tested to verify quality, safety, and purity. We publish our COA so you can see the proof for yourself.
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This document shows the results of independent laboratory testing for a specific batch. It’s our way of keeping quality transparent and easy to verify.

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What is a COA?

A Certificate of Analysis (COA) is a lab report showing the results of testing carried out on a product batch. It helps confirm identity, quality, and whether the sample meets relevant safety and specification checks.

Why ISO/IEC 17025 matters

Our testing is carried out by a UK laboratory accredited to ISO/IEC 17025 — the international standard used to assess testing competence. That means validated methods, controlled procedures, and reliable, traceable results.

What the testing covers

  • Identity / specification checks to confirm the material matches what it claims to be
  • Microbiological screening (where applicable)
  • Contaminant screening (where applicable, depending on the batch and test panel)
  • Quality markers such as moisture and other specification measures
Which batch does this COA refer to?

The COA is linked to a specific batch/sample reference shown on the report. If you want help matching your product to a COA, contact us and we’ll assist.
Why can test panels vary?

Testing can vary by batch depending on the panel requested and the product format. We prioritise quality and safety checks and publish results for transparency.
Can you help me read the COA?

Yes. Message us and we’ll explain the key sections in plain English.
Is this medical advice?

No. COA information is provided for transparency and quality reference only. If you have dietary requirements or health concerns, speak to a qualified professional.

COA information is provided for general transparency and quality reference only. It is not medical advice. If you have dietary requirements or health concerns, please consult a qualified professional.