Charlotte's Web CBD Review, 20mg CBD isolate

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  • Accuracy Rating
  • CBD Value Score
    Good deal
  • Size
    1 fl oz (30 mL)
  • Flavor
  • Hemp Type
    CBD Only
  • Has THC?
    No THC
  • Test Date
    May 2020
  • Video Review

What's in your CBD?

We purchased this CBD product and tested it at independent testing facilities to measure levels of CBD, THC, and other cannabinoids and compare the results to the manufacturer's claims. Here are the results. (Learn more about our review process.)

Test Results

Label Claims

Total mg CBD

600 mg

Our Lab Tests

From Lab A
Difference from label

19.53% more

Accuracy Rating
From Lab B
Difference from label

21.25% more

Accuracy Rating

* Products tested prior to 2020 were sent to only one independent testing facility.

The unadulterated test results on this page come directly from these certificates of analysis from two independent labs, which we pay directly. These are two independent lab tests 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. Added ingredients may affect lab results. Volume of creams and edibles may change due to factors such as temperature, and this may impact lab results. Learn more about our review process.

Cannabinoid Breakdown

From Lab A
Total Cannabinoids
Total CBD
Total THC
From Lab B
Total Cannabinoids
Total CBD
Total THC

Cannabinoid Breakdown by mL

From Lab A

CBD (mg / mL)

THC (mg / mL)

Other Cannabinoids (mg / mL)

From Lab B

CBD (mg / mL)

THC (mg / mL)

Other Cannabinoids (mg / mL)

Charlotte’s Web claims to have 20 mg of CBD per 1 mL serving. We found that each 1 mL serving contains about 24 mg of CBD.

Value Score

Price of Product
Cost per mg CBD*
Value Score

Good deal

* Cost per mg calculated from Lab A's test results.

Product Information

Details from the manufacturer
  • 30 mL (1 oz.)
  • 600 mg CBD from isolate
  • Flavor: None
  • THC: No. "THC FREE*, *no more than 10 parts per million."
  • Other cannabinoids: No
CBD, fractionated coconut oil. Contains coconut.

About the product

Charlotte’s Web claims this CBD oil is derived from CBD isolate, which should be just good old CBD.

Our lab tests confirmed CBD, CBDV, and no THC or other cannabinoids. The trace levels of CBDV are expected in pure CBD products because it is structurally similar to CBD.

Our labs found that Charlotte’s Web contained about 20% more CBD than suggested by their label.

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

Jeremy's Take

Charlotte’s Web is the big kid on the CBD block. They're the largest CBD company and a big reason why CBD is legal today. My lab testing has shown that they typically come in a little hot, with a bit of extra CBD in each product. I think they could do a better job with transparent labeling, but they make one of the best tasting full spectrum CBDs, and I might not be here today if it was not for Charlotte's Web.


At 10 cents per milligram of CBD, they’re expensive. 7.5 cents is average for CBD isolate, according to my ginormous CBD price analysis. Charlotte’s Web is no average company, but I am an average man who doesn’t like to pay premium prices for just CBD.


This CBD oil is “unflavored.” As you would expect, it doesn’t taste like anything. And it shouldn’t taste like anything because CBD has no flavor. Yet, so many CBD companies screw this up and make CBD oils that taste horrible. Charlotte's Web has always been ahead of the pack when it comes to taste and this pure CBD oil is no exception. It's almost sweet, which is probably just the MCT oil (derived from coconuts). The oil has a light viscosity for MCT oil, which is a good thing. For "unflavored," this tastes exceptional.


Our labs found about 24 milligrams of CBD per mL or about 21% more CBD than claimed by their label. That’s a decent size dose. Their lab results should have been closer for the leading CBD company on earth. This oil is just CBD, so you don't need to worry about the side effects of THC.

The directions on the box are awful: “Adults: Take Two full droppers (1 mL)…" The dropper looks like a milliliter dropper, making two full droppers equal 2 mL and NOT the "1 mL" suggested on the box. The dropper seems so much like a standard 1 mL dropper that I purchased a labeled 1 mL dropper and put them side-by-side. I filled the Charlotte's Web dropper up past the 1 mL mark on the comparable dropper. Bingo.

I then filled up a syringe to the 1 mL mark with what was in Charlotte’s Web dropper. That's right, even with my sloppy dribble all over the place, the Charlotte's Web dropper filled up 1 mL. Charlotte’s Web needs to label their 1 mL droppers because I’m sure people are confused and taking more CBD than they think.

*It's common to see CBD doses at 5 mg, 15 mg, 25 mg, and 50 mg for consumer products. Researchers use much larger doses (25 mg to 1500 mg of CBD). CBD dosing is highly individualized.


The superficial look is as good as it gets. The box is embroidered with thick lettering and their logo pops off the top with a beautiful shine. However, nowhere on the package or bottle do they list the total milligrams of CBD (600 mg). A lack of transparency makes it difficult to know if you're getting a good deal or not.


Charlotte's Web and their hemp strain are legendary. Something about their hemp's cannabinoid profile is special. However, this is just CBD. You're not getting those expensive cannabinoids here. Sure, it looks great and tastes great, but it better for that price. The unmarked dropper with the confusing instructions is beneath this brand. Inadequate labeling and instructions are my biggest complaint about all their tinctures. Sloppy labeling doesn't stop me from loving their full-spectrum Orange Blossom; it’s my favorite. However, I'm not going to buy CBD isolate from the king of full-spectrum hemp. I wouldn't stop you from buying pure CBD oil from a company that's done so much for the CBD movement, but you should know that there are cheaper options out there.

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