CBD Oil Industry Report 2019

September 2019

CBD Examine purchased 65 popular CBD oil products and sent them to an independent, ISO 17025 certified laboratory to test each one for cannabinoid levels. We published all of those test results on this site as product reviews. In this industry report, we summarize our findings.

Contents of this report

Key Findings


Of the 65 products we tested, 31 received an A score for accuracy, having cannabinoid levels within 10% of their product claims. Nine products we tested got D’s and F’s for having cannabinoid levels that were more than 30% off from what their labels’ claimed. Read more about the accuracy ratings below in the Accuracy Ratings section of this report.

THC found in some “THC-free” CBD products

We found four “THC-free” CBD products that tested positive for THC: Elixinol, Sol CBD, Joy Organics, and Mission Farms.

Amazon, CBD, and THC

We tested eight CBD products sold on Amazon.com. All eight contained CBD and six also contained THC. One of Amazon’s most popular CBD products, R+R Medicinals, contained a whopping 63 mg of THC. Amazon claims to prohibit CBD and THC products. However, a search for “CBD” on Amazon displays over 10,000 products and they even have a page for their top “CBD Oils.”

Don’t trust the COA

A Certificate of Analysis (COA) is a third-party test that “proves” a CBD product contains the amount of cannabinoids claimed on its label. Our testing found COAs provided by manufacturers completely unreliable. We found that the majority of mislabeled products (inaccurate by 30%+) came with a COA from the manufacturer. For example, our lab results found 69.13% fewer mg of CBD than the COA provided by Hemp Bombs. Joy Organics came with a COA that claimed zero THC, while our testing found THC in their product.

A link found in popular CBD brands for epilepsy

Charlotte’s Web, Palmetto Harmony, and Haleigh’s Hope are popular CBD brands for treating epilepsy. All three brands contained substantial amounts of the cannabinoids CBC and CBG, which research shows may be partially responsible for reducing seizures

Accuracy Ratings

Accuracy scores are based on the difference between the product's label and the amount of cannabinoids or CBD found in the product. We base calculations on total cannabinoid levels for labels that are not specific. For example, a product that has a label with "500 mg" is calculated as total cannabinoids. A product label that specifies "500 mg CBD" will receive an accuracy score based on CBD levels.

Accuracy scores
A 0-10% off Our test results found that the CBD or cannabinoid levels were within 10% of the product’s label.
B 10-20% off Our test results found that the CBD or cannabinoid levels were within 20% of the product’s label.
C 20-30% off Our test results found that the CBD or cannabinoid levels were within 30% of the product’s label. For reference, the California Bureau of Cannabis Control (BCC) requires medical marijuana products to test within 30% of cannabinoids suggested by their label. However, hemp products are not regulated.
D 30-40% off Our test results found that the CBD or cannabinoid levels were within 40% of the product’s label.
F More than 40% off Our test results found CBD or cannabinoid levels 40% off or more.

Products with "A" Accuracy Rating

Products with "B" Accuracy Rating

Products with "C" Accuracy Rating

Products with "D" Accuracy Rating

Products with "F" Accuracy Rating

At a glance

Percent difference from label
Accuracy Rating
Cost per mg CBD
CBD Value Score
35.1% more
Good deal
Value Score - CBD
Value rating Cost per mg CBD
Best value $0.087 or less
Good deal $0.088 to $0.149
Fair deal $0.150 to $0.211
Pricey more than $0.211

Value Scores above are based on cost per of mg of CBD on the product that we purchased and tested. Note that many products come in larger discounted sizes, which we describe in each review. Remember to look at the “accuracy” score and read about the “good” and “bad” of each CBD company before making a purchasing decision.

About CBD Examine

CBDexamine.com is consumer advocacy group that shows consumers what’s inside their CBD products. All 65 product reviews are available for free at CBDexamine.com. Products tested included some of the most popular brands according to Google ranking, market research reports, CBD review websites, or top rated brands sold on Amazon.com. We are not affiliated with any of the CBD companies reviewed. (Update 2020: at the time of this 2019 report, we had no affiliations. In July of 2020, we started using affiliate links to support our independent lab testing.)

Learn more: About CBD Examine | Our Review Process

This site does not provide medical advice, diagnosis or treatment. Our content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Read the disclaimer.
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