Certificates of Analysis
We believe that trust starts with transparency. That’s why we’re committed not just to offering high-quality products, but also to helping you understand exactly what’s inside them and how their safety and purity are verified.
All of our products are made in GMP-compliant facilities. You can read more about what that means on this page. All products have Manufacturing Certificates, some products come with Certificates of Analysis (CoAs) provided by the manufacturers. We go one step further by running independent third-party lab tests on selected products and will continue expanding this list to the highest quality, safety, and peace of mind for our customers.
On this page, we’ll walk you through:
You can also find CoAs directly on individual product pages, and we’re regularly updating a central list at as more results become available.
What is a CoA (Certificate of Analysis)?
A Certificate of Analysis (CoA) is an official document that shows a product has been tested either by the manufacturer or an independent lab and meets specific quality and safety standards.
It confirms what’s inside the product, in what amount, and whether it’s free from harmful contaminants.
Why is a CoA important?
A CoA helps you verify that:
- The product contains what it claims
- It’s free from harmful substances (like heavy metals or microbes)
- It meets purity and potency standards
In short, it’s your quality assurance, especially important when it comes to supplements, peptides, and nootropics that affect your health and well-being.
What tests are included in a CoA?
Depending on the type of product, a CoA may include one or more of the following:
Identity Testing
Confirms the substance is what it claims to be using methods like HPLC, NMR, or mass spectrometry (read about these methods in the next section).
Purity & Concentration
Measures how much of the active ingredient is present. For example:
A supplement labeled “100 mg of X” should actually contain 100 mg of X.
Microbial Testing
Checks for dangerous bacteria, mold, or yeast (e.g., E. coli, Salmonella, etc.).
Heavy Metal Testing
Screens for toxic elements like lead, arsenic, mercury, or cadmium, which can accumulate in the body.
Extractable Volume
For liquid products in ampoules or vials, this test confirms that the amount of liquid you can actually use matches the label (e.g., at least 5 ml from a 5 ml ampoule). This ensures no significant loss during extraction.
pH Level
Measures how acidic or alkaline a liquid product is. The pH must be within a safe and stable range to ensure the product is non-irritating and effective.
Appearance and Physical Description
Describes the color, texture, smell, or form of the substance (e.g., “clear yellow liquid,” “white powder”).
What testing methods are used?
Different tests require different tools. Depending on what is being analyzed, labs use a range of specialized methods suited to the substance and the type of test. To help you better understand what you see in a Certificate of Analysis, we’ve put together a quick overview of the most commonly used testing methods and what they’re for.
HPLC (High-Performance Liquid Chromatography)
Used for purity and potency: identifies and quantifies components in a sample.
Mass Spectrometry (MS)
Detects the molecular weight of substances, often paired with HPLC (LC-MS).
NMR (Nuclear Magnetic Resonance)
Confirms molecular structure, often used for peptides and complex compounds.
ICP-MS (Inductively Coupled Plasma Mass Spectrometry)
Detects heavy metals with high sensitivity.
GC (Gas Chromatography)
Used for residual solvents: ensures chemical solvents are within safe limits.
Microbial Testing (Culture or PCR)
Detects bacterial, fungal, or microbial contamination.
Certificates for Our Products
Below you’ll find a list of products that come with independent third-party Certificates of Analysis. These lab reports confirm identity, purity, and safety based on standardized testing methods.
We’re continuously expanding this list as new products are tested, so check back regularly for updates.
* Tested by: MZ Biolabs, a US-based licensed laboratory specializing in peptides, nootropics, and other research compounds.