Was it made and tested carefully?
Sourcing and lab records can help answer identity, purity, and contamination questions.
Labels and lab reports
Learn how to read sourcing claims, cannabinoid profiles, certificates of analysis, and formulation terms without confusing product quality with health evidence.
Plain-language guides
These guides explain what to look for, what a record means, and what it cannot tell you.
How readers can evaluate organic sourcing language, hemp quality, ingredient traceability, and what sourcing documents can and cannot prove.
Read the guide Lab Report Literacy How to Read Cannabinoid Testing and COAsAn educational standard for reading certificates of analysis, batch testing, cannabinoid potency, contaminants, and public traceability language.
Read the guide Build In Public How Cannabinoid Research Transparency Should WorkThe roadmap for turning Cannabinoid Encyclopedia into a public education system with traceable sources, correction pathways, and transparent uncertainty.
Read the guideThree different questions
Sourcing and lab records can help answer identity, purity, and contamination questions.
A matching COA can report cannabinoid amounts and the panels that were tested.
Clinical and safety research answers health questions. A label or COA cannot replace that research.
Follow the claim
Front-label language is a starting point. A reader should be able to move from the statement to a dated, product-specific record and see exactly what that record does and does not establish.
Sourcing statement
Look for the certifying body, certificate scope, covered farm or ingredient, effective dates, and the chain connecting that material to the finished product. Sourcing documentation does not replace finished-batch testing.
Testing statement
Open the report and match the product, lot, laboratory, date, methods, units, reporting limits, and panels. A potency result does not show that contaminants were tested, and a clean panel does not prove a health effect.
Composition statement
Use the ingredient list and batch-matched cannabinoid profile to identify what is actually present. The category name alone does not make two products equivalent or transfer research from one formulation to another.
Research statement
Match the cited study to the exact compound, preparation, amount, route, population, comparison, and outcome. Research on a purified medicine or named extract should not silently become proof for a different retail product.
Four-step check
Copy the exact statement. Keep words such as organic, THC-free, full spectrum, clinically studied, and lab tested in their original wording.
Name the supporting record. Decide whether the statement needs a certification, ingredient specification, batch certificate of analysis, or research source.
Match identity and date. Confirm that product, formulation, lot, sample, laboratory, and document version belong together.
Stop at the evidence boundary. Product identity and quality records can support composition or testing statements; health and safety conclusions require their own research.
For a full walkthrough, open the COA reader, the testing standard, or the formulation comparison.