How Accurate are Your CBD Labels? Independent Test Results from CBD Brands

This article reports on the accuracy of labels from some of the most popular CBD companies. We had Canalysis analyze samples, provide us with a Certificate of Analysis (a COA) and compared the results to what the labels stated.
Written by 
Zora Degrandpre, MS, ND.
|Last Updated:
Accuracy Test

LeafReport has collaborated again with Canalysis a lab that analyzes CBD products for amounts of CBD and other cannabinoids detected (potency), various contaminants and residuals.

You can also watch the video below of our interview with the director Canalysis lab, Trevor Low going thought the test results:

How We Determined Accuracy

We sent Canalysis various products and then compared the levels of CBD actually determined using analytic lab techniques versus the level of CBD listed on the label. Any differences are described by determining a percent variance—that is a measure of how different the amount of CBD that is claimed to be in a product is to the amount actually found in the product.

If the Variance </= (+/-)10%, then the brand passed the accuracy-test successfully.

Let’s work out an example. Say some company –lets call it ACMEX-CBD has a product that claims there is a total of 300 mg of CBD in a 30 mL bottle and one “serving” is a dropperful or 1 mL. That would mean that every mL had 300 mg/30mL= 10 mg of CBD. Now let’s say the chemists at Canalysis determined there was actually 240 mg in that 30mL bottle. That would mean that every mL had 250mg/300 mL= 8 mg of CBD. That would mean that the % variance for the fictitious ACMEX-CBD would be:

Variance (%) = [(300- (240)] X 100 = 20%. The number is positive because the amount (300) claimed is More than the true amount .

If that same analysis determined that there was actually 330 mg in that 30mL bottle and not 300 mg, the % variance would be:

Variance (%) = [(300- (330)] X 100 = (-) 10%. The number is negative because the amount (300) claimed is Less than the true amount.

So if the % variance is positive, there is Less actual CBD than claimed and if the % variance is negative, there is More actual CBD than claimed.

% Variance Conclusion
%Variance is (+) Less CBD than claimed
% Variance is (-) More CBD than claimed

 

How Did These Nine Companies Rate?

Green Roads

92out of 100
Read Review
CBD Amount Range
50 mg - 1500 mg
Price Range
$4.97 - $149.99
Visit Site
May Support
NA
Consumption Method
Tinctures & Drops, Creams & Topicals, Pets - Tinctures, Capsules, Gummies, Other, Edibles
Extract Types
Broad Spectrum
CBD Strength
50 mg - 1500 mg, Capsules: 750 - 750 mg;Tinctures & Drops: 300 - 1500 mg;Creams & Topicals: 50 - 750 mg;Other: 150 - 150 mg;Gummies: 50 - 750 mg;Pets - Tinctures: 60 - 600 mg;Edibles: 180 - 180 mg
Price Per Mg CBD
NA
THC Concentration
< 0.3%
Offers Tastes
Yes
Third Party Lab Results
Yes
Additional Information
CO2
Hemp Source
NA
Customer Service By
Live Chat, Email, Phone, Facebook, Address, Twitter, Instagram
CBD Extract Method
CO2
Free Shipping
No
Worldwide Shipping
Micronesia, Guam, Marshall Islands, Northern Mariana Islands, Puerto Rico, Palau, United States, Virgin Islands, British, Samoa
Money Back Guarantee
Yes
Military Veteran Discount
Yes

Green Roads has a great reputation in the CBD market but how well did they do on our accuracy test?

We tested the product labeled as containing a total of 250 mg in a 15mL bottle. The label and information from the site indicate that one serving (1 mL) should contain 17 mg of CBD. Let’s see what the COA from Canalysis states:

· In the column under “Mass”, we have 256.969 mg of CBD in 15 mL. The % variance on that is (-) 2.4 %. Great Result! Remember that a negative number in this context means the product contains more CBD than listed on the label. And, just to complete your information, 256.969 mg CBD/15 mL= 17.13 mg of CBD in every mL.

Green Roads COA

 

CBDFx

93out of 100
Read Review
CBD Amount Range
20 mg - 6000 mg
Price Range
$4.99 - $199.99
Visit Site
May Support
NA
Consumption Method
Tinctures & Drops, Vapes & Liquids, Gummies, Capsules, Creams & Topicals, Pets - Tinctures, Other, Edibles, Pets - Edibles
Extract Types
Full Spectrum, Isolate, Broad Spectrum
CBD Strength
20 mg - 6000 mg, Pets - Edibles: 450 - 750 mg;Pets - Tinctures: 250 - 2000 mg;Gummies: 1500 - 1500 mg;Edibles: 20 - 20 mg;Creams & Topicals: 20 - 3000 mg;Other: 45 - 200 mg;Vapes & Liquids: 250 - 2000 mg;Tinctures & Drops: 500 - 6000 mg;Capsules: 750 - 1500 mg
Price Per Mg CBD
NA
THC Concentration
< 0.3%
Offers Tastes
Yes
Third Party Lab Results
Yes
Additional Information
CO2
Hemp Source
United States
Customer Service By
Live Chat, Email, Phone, Facebook, Address, Twitter, Instagram
CBD Extract Method
CO2
Free Shipping
No
Worldwide Shipping
NA
Money Back Guarantee
Yes
Military Veteran Discount
Yes

CBDFx is another well-rated and well-respected company. We tested their Hemp oil labeled as 500mg in 30 mL. That would mean a serving of 1 dropperful (1mL) should contain 16.67 mg of CBD or about 17 mg/ml.

The COA for this product indicates that the mg/unit (the full bottle) is 519.180 and pretty much on target. The % variance is (-) 3.83%. Another great result!

 

Charlotte’s Web

91out of 100
Read Review
CBD Amount Range
75 mg - 6000 mg
Price Range
$14.99 - $274.99
Visit Site
May Support
Sleep
Consumption Method
Tinctures & Drops, Creams & Topicals, Gummies, Capsules, Pets - Tinctures, Pets - Edibles, Other
Extract Types
Isolate, Full Spectrum, Broad Spectrum
CBD Strength
75 mg - 6000 mg, Pets - Tinctures: 510 - 1700 mg;Tinctures & Drops: 210 - 6000 mg;Creams & Topicals: 100 - 750 mg;Capsules: 450 - 2250 mg;Gummies: 150 - 1500 mg;Pets - Edibles: 75 - 450 mg;Other: 500 - 500 mg
Price Per Mg CBD
NA
THC Concentration
< 0.3%
Offers Tastes
Yes
Third Party Lab Results
Yes
Additional Information
CO2
Hemp Source
NA
Customer Service By
Live Chat, Email, Phone, Facebook, Address, Twitter, Instagram
CBD Extract Method
CO2
Free Shipping
No
Worldwide Shipping
United States
Money Back Guarantee
No
Military Veteran Discount
Yes

Charlotte’s Web is among the best-known and well-respected companies in the CBD world. We had their 17 mg/ mL (serving) of CBD oil analyzed. Charlotte’s Web gives the amount per serving on the label rather than the total amount of CBD in the entire bottle (unit). Let’s see how they did.

According to the Canalysis COA, the unit contains 562.149 mg of CBD in a 30mL bottle—that works out to 18.74 mg/mL. That doesn’t look like much difference, but the % variance works out to be over (-)10%. ([-]10.19% to be more exact). So, while Charlotte’s Web actually gives you more CBD than it says on the label, as far as the accuracy testing goes, sorry to say that it did not pass – just barely.

Charlottes Web COA

 

CBDistillery

88out of 100
Read Review
CBD Amount Range
100 mg - 5000 mg
Price Range
$20 - $240
Visit Site
May Support
NA
Consumption Method
Tinctures & Drops, Capsules, Creams & Topicals, Pets - Tinctures, Isolate, Gummies, Edibles
Extract Types
Full Spectrum, Isolate
CBD Strength
100 mg - 5000 mg, Gummies: 450 - 900 mg;Tinctures & Drops: 450 - 5000 mg;Isolate: 1000 - 1000 mg;Pets - Tinctures: 150 - 600 mg;Creams & Topicals: 100 - 1000 mg;Capsules: 300 - 1800 mg;Edibles: 250 - 250 mg
Price Per Mg CBD
NA
THC Concentration
< 0.30%
Offers Tastes
Yes
Third Party Lab Results
Yes
Additional Information
CO2
Hemp Source
United States
Customer Service By
Live Chat, Email, Phone, Facebook, Address, Twitter, Instagram
CBD Extract Method
CO2
Free Shipping
No
Worldwide Shipping
United States
Money Back Guarantee
Yes
Military Veteran Discount
Yes

CBDistillery is a highly regarded company and one thing that stands out is its clear labeling. We had their 250mg CBD in 30mL oil tested by Canalysis. And since the company promotes that its product is THC-free, we’ll take a quick look at that as well.

The COA for CBDistillery indicates that the THC level is <LOQ, meaning it is below the Level of Quantification. For any geeks out there, the LOQ for Δ9-THC was 60.000 mg/unit while the LOQ for the Δ8THC was 21.000 mg/unit.

As far as the total CBD, the analysis determined that there was 253.200 mg/unit or 8.44 mg/mL. The % variance for this CBDistillery product was (-)1.28% and that is most definitely a “pass”!

CBDistillery COA

 

Savage CBD

83out of 100
Read Review
CBD Amount Range
150 mg - 2000 mg
Price Range
$14.99 - $49.99
Visit Site
May Support
NA
Consumption Method
Tinctures & Drops, Creams & Topicals, Vapes & Liquids, Isolate, Gummies
Extract Types
Full Spectrum, Broad Spectrum, Isolate
CBD Strength
150 mg - 2000 mg, Creams & Topicals: 150 - 750 mg;Vapes & Liquids: 200 - 1000 mg;Pets - Edibles: 150 - 300 mg;Tinctures & Drops: 1000 - 2000 mg;Gummies: 300 - 300 mg
Price Per Mg CBD
NA
THC Concentration
< 0.3%
Offers Tastes
Yes
Third Party Lab Results
Yes
Additional Information
CO2
Hemp Source
United States
Customer Service By
Live Chat, Email, Phone, Facebook, Address, Twitter, Instagram
CBD Extract Method
CO2
Free Shipping
No
Worldwide Shipping
United States
Money Back Guarantee
No
Military Veteran Discount
Yes

Savage CBD is possibly less well known, but well-regarded as providing quality CBD and providing a wide variety of products. We took a look at their Full Spectrum CBD tincture containing 1000 mg of CBD in 30 mL.

The COA indicates that the THC level is <LOQ. (LOQ for Δ9-THC was 60.000 mg/unit; LOQ for the Δ8THC was 21.000 mg/unit.

For the CBD analysis, the COA indicates that each unit contains 1016.250 mg of CBD, meaning a % variance of (-)1.625%. Another pass!

Savage CBD COA

 

cbdMD

89out of 100
Read Review
CBD Amount Range
100 mg - 7500 mg
Price Range
$-1 - $1500
Visit Site
May Support
NA
Consumption Method
Tinctures & Drops, Gummies, Creams & Topicals, Capsules, Pets - Tinctures, Pets - Edibles, Other, Edibles
Extract Types
Broad Spectrum
CBD Strength
100 mg - 7500 mg, Other: 100 - 500 mg;Creams & Topicals: 100 - 3200 mg;Pets - Edibles: 150 - 600 mg;Capsules: 450 - 3000 mg;Pets - Tinctures: 150 - 3000 mg;Gummies: 300 - 1500 mg;Tinctures & Drops: 300 - 7500 mg;Edibles: 250 - 250 mg
Price Per Mg CBD
NA
THC Concentration
< 0.3%
Offers Tastes
Yes
Third Party Lab Results
Yes
Additional Information
CO2
Hemp Source
United States
Customer Service By
Live Chat, Email, Phone, Facebook, Address, Twitter, Instagram
CBD Extract Method
CO2
Free Shipping
No
Worldwide Shipping
United States
Money Back Guarantee
Yes
Military Veteran Discount
No

cbdMD is one of the more highly respected CBD companies with a variety of products. We had their premium 300mg CBD oil tested—it is broad spectrum. Good news! The COA from Canalysis indicates the this CBD product contains 321.270 mg in 30 mL with a % variance of (-) 7.09%. cbdMD also claims that it is THC-free—and our analysis indicates that this is correct—the THC levels were <LOQ. Another pass!

cbdMD COA

 

+PlusCBD

87out of 100
Read Review
CBD Amount Range
25 mg - 3000 mg
Price Range
$9.99 - $179.99
Visit Site
May Support
NA
Consumption Method
Tinctures & Drops, Creams & Topicals, Gummies, Capsules, Pets - Tinctures
Extract Types
Full Spectrum
CBD Strength
25 mg - 3000 mg, Pets - Tinctures: 250 - 500 mg;Capsules: 150 - 3000 mg;Creams & Topicals: 25 - 500 mg;Tinctures & Drops: 100 - 3000 mg;Gummies: 300 - 750 mg
Price Per Mg CBD
NA
THC Concentration
< 0.3%
Offers Tastes
Yes
Third Party Lab Results
Yes
Additional Information
CO2
Hemp Source
Netherlands
Customer Service By
Live Chat, Email, Phone, Facebook, Address, Twitter, Instagram
CBD Extract Method
CO2
Free Shipping
No
Worldwide Shipping
United States
Money Back Guarantee
Yes
Military Veteran Discount
No

We rated PlusCBD oils as “one of the most experienced and respected American CBD brands.” We tested one of the “Gold” products which undergoes an additional processing step to concentrate the CBD along with other cannabinoids, terpenes and fatty acids.

The COA found 247.260 mg of CBD per unit, with the label claiming 250 mg of CBD. The % variance was (+)1.096%. Another pass!  This was well within our acceptable limits

Plus CBD oil COA

 

Elixinol

90out of 100
Read Review
CBD Amount Range
150 mg - 4000 mg
Price Range
$19.99 - $179.99
Visit Site
May Support
NA
Consumption Method
Pets - Edibles, Capsules, Pets - Tinctures, Tinctures & Drops, Creams & Topicals, Gummies
Extract Types
Full Spectrum
CBD Strength
150 mg - 4000 mg, Gummies: 450 - 450 mg;Tinctures & Drops: 300 - 4000 mg;Creams & Topicals: 500 - 2000 mg;Capsules: 900 - 2700 mg;Pets - Tinctures: 500 - 500 mg;Pets - Edibles: 150 - 150 mg
Price Per Mg CBD
NA
THC Concentration
< 0.3%
Offers Tastes
No
Third Party Lab Results
No
Additional Information
CO2
Hemp Source
United States
Customer Service By
Live Chat, Email, Phone, Facebook, Address, Twitter, Instagram
CBD Extract Method
CO2
Free Shipping
No
Worldwide Shipping
United States
Money Back Guarantee
No
Military Veteran Discount
No

Elixinol produces this full-spectrum oil using supercritical CO2 extraction methods. We tested the 300mg hemp extract and found that our sample contained 305.190 mg, with a % variance of (-)1.73% it passed our accuracy test very well! THC levels were <LOQ.

Elixinol COA

 

JustCBD

80out of 100
Read Review
CBD Amount Range
50 mg - 5000 mg
Price Range
$7.99 - $144.99
Visit Site
May Support
NA
Consumption Method
Tinctures & Drops, Vapes & Liquids, Gummies, Capsules, Pets - Tinctures, Pets - Edibles, Other, Edibles, Creams & Topicals
Extract Types
Broad Spectrum, Full Spectrum, Isolate
CBD Strength
50 mg - 5000 mg, Creams & Topicals: 125 - 1500 mg;Gummies: 250 - 3000 mg;Other: 150 - 150 mg;Pets - Edibles: 100 - 100 mg;Vapes & Liquids: 250 - 1000 mg;Tinctures & Drops: 50 - 5000 mg;Pets - Tinctures: 100 - 500 mg;Edibles: 100 - 100 mg
Price Per Mg CBD
NA
THC Concentration
< 0.02%
Offers Tastes
No
Third Party Lab Results
Yes
Additional Information
CO2
Hemp Source
United States
Customer Service By
Live Chat, Email, Phone, Facebook, Address, Twitter, Instagram
CBD Extract Method
CO2
Free Shipping
No
Worldwide Shipping
United States
Money Back Guarantee
No
Military Veteran Discount
Yes

The last product we tested was JustCBD’s 250 mg of CBD in a 30mL bottle. JustCBD is one of out most highly rated companies and even provides you with nutritional information! (For the record, we did NOT test for calories or total carbohydrates) The 1500 mg CBD is a full spectrum product, so we will also check the THC levels found in the analysis good to go, because they were all <LOQ.

The analysis provided by Canalysis indicated that the sample contained 235.140 mg of CBD leading to a %variance of (+)5.94%. This was a bit higher than some of our other samples, but it passed!

Just CBD COA
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Dr. Zora DeGrandpre practices naturopathic medicine (home visits) in rural Washington and is a professional medical and scientific writer and editor, specializing in naturopathic, functional, botanical and integrative medicine. Dr. DeGrandpre has degrees in drug design, immunology and natural medicine and has extensive research experience in cancer and molecular immunology. In her practice, Dr DeGrandpre has found the use of CBD with elderly patients and others to be safe and clinically effective. She brings to all her writing a straightforward approach that is accurate, clear and authentic.

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