Quality, Testing & COA Library
Quality information is useful only when it is specific enough to examine. This page explains how we review product documentation, what common laboratory terms mean, how to read a certificate of analysis and where to find available lot- or batch-level reports.
A certificate of analysis supports only the sample, tests, methods and results identified on that document. It does not automatically establish safety, regulatory approval, manufacturing conditions or suitability for any use.
Our quality review framework
The information available differs by product, supplier and production lot. Our review may consider product identity, stated composition, physical format, packaging, label consistency, lot references, supplier records, storage requirements and independent or third-party laboratory results. A product is not assigned a broad quality label simply because one document exists.
- Identity: whether the tested sample is consistent with the named substance
- Assay or content: the measured amount of the target substance under the stated method
- Chromatographic purity: the proportion of detected material represented by the main target peak under the test conditions
- Contaminant testing: targeted screening for specified substances such as certain solvents, metals or microorganisms
- Sterility testing: a separate test intended to detect viable contaminating microorganisms under defined conditions
- Endotoxin testing: a separate measurement related to bacterial endotoxins; it is not the same as sterility
- Packaging and traceability: whether the product label and lot reference align with available records
What common COA fields mean
| Field | What to check | Important limitation |
|---|---|---|
| Product or sample name | Match the complete name and format | Similar names do not prove the same material |
| Lot or batch number | Compare it with the label when a lot-specific report is provided | A different lot may have different results |
| Laboratory and report date | Identify who performed the test and when | A date alone does not prove current relevance |
| Method | Look for the technique used, such as HPLC or mass spectrometry | Different methods answer different questions |
| Result and units | Read the measured value, units and any reference range | A headline percentage without context can be misleading |
| Signatures or verification | Look for report identifiers or verification details | A logo is not proof that a report is authentic |
Purity is not the same as total content
A chromatographic purity value generally describes the relative area of detected peaks under a stated method. It does not necessarily tell you the total mass of material in a vial or container, identify every possible contaminant, or establish that the product is sterile. Assay, net content, identity and impurity testing may require different methods and calculations.
Why lot matching matters
The strongest link between a product and a report is a matching lot or batch reference. Product names can remain the same while raw materials, manufacturing dates or packaging runs change. When a report is not lot-specific, it should be read as background documentation rather than assumed proof for every unit sold under that name.
How to review a COA in five steps
- Match the full product name, strength or format and lot or batch number where available.
- Identify the laboratory, report date, sample description and party that submitted the sample.
- Check which tests were actually performed; do not infer unlisted tests.
- Read the numerical result, units, method and any stated uncertainty or acceptance range.
- Compare the report with the current label and contact support if any material detail conflicts.
Claims we do not infer from a limited report
- A purity result does not by itself establish sterility or endotoxin status.
- An identity result does not by itself establish the quantity present.
- A passing targeted contaminant test does not prove the absence of every possible contaminant.
- A supplier document does not automatically establish independent testing.
- A COA does not establish that a product is FDA-approved, clinically effective or appropriate for a person.
- A report for one lot should not be represented as a report for another lot.
COA Library
Available reports should be accessed from the relevant product page or the document links maintained in this section. Always open the report and match the complete product name and lot or batch number instead of relying on a thumbnail or filename.
If a current report is not displayed, it may be pending, archived, unavailable for that lot or filed under a different format. Contact support with the complete product name, stated strength or quantity, format and lot or batch reference. We will check the documentation available; we will not substitute an unrelated report.
Document request checklist
- Complete product name
- Strength, quantity and format shown on the label
- Lot or batch number
- Order number, if the request concerns a delivered item
- A clear photograph of the label when identification is uncertain
Storage, packaging and transit
Testing documents do not replace product-specific storage requirements. Temperature, light, moisture, time and packaging integrity can affect different materials in different ways. Follow the unopened storage statement on the actual label and any selected-lot documentation. If a temperature-sensitive item arrives outside the conditions stated for it, retain the packaging and contact support promptly.
External regulatory context
Regulatory approval and laboratory testing are separate concepts. The FDA explains that compounded drugs are not FDA-approved and are not reviewed through the approval process for safety, effectiveness and quality. The agency also cautions consumers about unapproved SARMs and unapproved GLP-1 products. These references are provided for context: FDA compounding questions and answers, FDA information on SARMs and FDA information on unapproved GLP-1 products.