Charlotte’s Web CBD Review, Extra Strength (Now 17MG CBD)


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Accuracy Rating B
CBD Value Score Good deal
Size 1 fl oz (30 mL)
Hemp Type Full spectrum

What's in your CBD?

Test Results

We sent this product to an independent lab to see what’s inside.

From the label

Total mg listed


From our test results

Total mg cannabinoids



Accuracy Rating


This product claims 540 mg of CBD. Our test results found 608.850 mg of CBD, 12.75% more than what is listed on the product’s label.

See how this product compares to other CBD products we have tested here.


Cannabinoid breakdown per bottle

CBD (mg / bottle)


THC (mg / bottle)


Other cannabinoids (mg / bottle)


The unadulterated test results on this page come directly from the certificate of analysis (linked above) from an independent lab, which we pay directly. This is a single independent lab test of one product, at one point in time. We do not guarantee that all products or labs will produce the same results. Lab results may differ based on the different methodologies of testing used by each lab or inconsistencies in the product. Learn more about our review process here.


Value: Cost per cannabinoid


Cost per mg CBD


Value Score

Good deal

All Cannabinoids

Cost per mg cannabinoids


Value Score

Good deal

Rare Cannabinoids*

* excluding CBD, CBDa, THC, & THCa

Cost per mg rare cannabinoids


Value Score

Good deal


Product Information

Details from the manufacturer

We purchased and tested this product in 2019 when it was an 18 mg formula. It is now a 17 mg formula. I updated the price to reflect the new price and account for less CBD, however, we need to do a new review and lab test for accurate cannabinoid levels on their new formula.

  • 1 oz (30 mL)
  • 840 mg hemp extract, website lab test listed 540 mg in 2019 (Updated 2020: 510 mg CBD)
  • 28 mg hemp extract per 1 mL, website lab test listed 18 mg CBD per mL in 2019 (Updated 2020: 17 mg CBD)
  • Full-spectrum hemp extract
  • Mint chocolate
  • CBD mg: not listed (updated 2020: 510 mg)
  • THC: Yes
  • Other cannabinoids: Yes

Update 2020: New label now claims 17 mg CBD per 1 mL (total 510 mg). This one needs an update because their new formula is 17 mg instead of the 18 mg formula that we tested in 2019. 


Hemp extract, fractionated coconut oil, organic mint chocolate flavor oil (organic sunflower oil, natural flavors). Contains coconut.

About the product

Charlotte’s Web claims this is a full spectrum hemp extract. Our lab tests confirmed that it is a full-spectrum hemp extract that contains CBD, THC, CBDa, CBC, CBG, and CBDV.

We found that Charlotte’s Web contained slightly more CBD than suggested by their new label.

You can take this product sublingually or mix it with food or a drink.

Update 2020: The product we purchased in 2019 had “28 mg per serving” on the label for a total of 840 mg in the 30 mL bottle. Their new label (2020) for this product now states, “28 mg of hemp extract per serving including 17 mg of phytocannabinoids,” which totals 510 mg of cannabinoids for the entire bottle. Our original review was critical of their label, but they fixed the problem and now include specific cannabinoid levels. 

Cannabinoid breakdown per mL

CBD (mg / mL)


THC (mg / mL)


Other cannabinoids (mg / mL)

Charlotte’s Web claims to have 28 mg of hemp extract per 1 mL dose. Their website lab reported listed 18 mg of CBD per mL. We found that each 1 mL dose contains a total of 22.598 mg of cannabinoids, including 20.295 mg of CBD and 0.905 mg of THC.

Update: Charlotte’s Web now lists: “17 mg of CBD per 1 mL serving” on their website for this product. We need to do an updated lab test and review for 2020. 

About the company

Charlotte’s Web was founded in 2012 by the Stanley Brothers in Denver, Colorado. Charlotte’s Web leads the market of hemp-based CBD products and is a publicaly traded company. They created the famous strain called Charlotte’s Web and are credited for starting the CBD movement.

The good:

  • The mother of Charlotte Figi contacted the Stanley brothers in 2012. They were developing a strain of cannabis that was rich in CBD and low in THC. Charlotte suffered from a rare form of epilepsy. But things changed for the better. In 2013, Charlotte and the new cannabis strain called Charlotte’s Web were featured in a documentary by Dr. Sanjay Gupta. This documentary sparked a CBD movement that would lead to an abundance of research and the legalization of hemp. *Charlotte’s Web (and all other CBD products available to the public) are not intended or FDA approved to treat any medical conditions. Please see your doctor for any medical advice on CBD. 
  • You can read about Charlotte Figi in a case study, here.
  • Charlotte’s Web has the most substantial following on the internet out of all CBD companies on the market, with thousands of positive testimonials.
  • The U.S. Hemp Authority awarded Charlotte’s Web a high-quality seal.
  • A rating by the Better Business Bureau with excellent reviews.
  • Charlotte’s Web was given an FDA warning letter in 2017 for false medical claims. I typically put this in the “bad” section. However, Charlotte’s Web played a large part in pushing CBD’s boundaries before it was legal. Many of the FDA’s examples were from customers commenting on how much the product helped a variety of medical conditions. Charlotte’s Web fixed the problem (although it’s disappointing that the FDA doesn’t allow people to share how CBD helps them). 
  • Charlotte’s Web is supporting a study that will help the FDA with questions and concerns about CBD and human health. This may help more people get access to CBD in the future.

The bad:

  • An extensive internet search for Charlotte’s Web found no reports of inconsistency, toxins, pesticides, metals, fake products, or unethical business practices.

Fixed (2020 update):

  • Fixed labeling. A 2018 report by  found that the Charlotte’s Web label was misleading. My original review in 2019 was also very critical of their label because CW displayed milligrams of hemp extract instead of milligrams of CBD. Many people thought they were getting more CBD than actuality. However, I always looked passed this because they produced CBD before it was federally legal and couldn’t use the term “CBD.” They also provided a lab cert that showed CBD levels. Their label was fixed in 2019.

Other sizes available

We tested the $59.99 bottle (30 mL) of the Charlotte’s Web Extra Stength. The price drops from about 12 cents to about 7 cents per mg of CBD if you purchase the $149.99 bottle (100 mL).

Quantity Cost Total estimated CBD Cost per mg of CBD
1 oz. (30 mL) bottle $59.99 608.850 mg $0.104
3.38 oz. (100 mL) bottle $149.99 2029.500 mg $0.074

Other Products by Charlotte’s Web

Charlotte’s Web offers CBD oil, capsules, gummies, and CBD for dogs.


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