12 Strongest CBD Oil Products: Reviews & Guide (2021)

By | last updated September 28, 2021

Medically reviewed by
Saira Zulfiqar, PharmD

Evidence Based 4

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Do you find that most CBD oils aren’t strong enough to give you the desired effects? Chances are you need a high-potency product providing 40+ mg of CBD per dose.

Unfortunately, it’s not always easy to find high-strength CBD oil, especially if you want it to be affordable and effective at the same time.

That’s why we compared over 60 CBD products based on their strength, third-party lab test results, hemp quality, company reputation, formula, customer reviews, price, and other criteria.

Here’s a look at the strongest CBD oils, capsules, and other CBD products from the most reputable brands.

CBD Terminology

  • Terpenes: aromatic plant compounds with a wide variety of beneficial properties (1).
  • Minor cannabinoids: CBN, CBG, and other beneficial cannabinoids that are present in smaller amounts than CBD.
  • Hemp: a non-intoxicating variety of cannabis with high CBD and low THC levels (>0.3%).
  • Full-spectrum: whole-plant hemp extract containing CBD, THC, and other beneficial hemp cannabinoids and terpenes. This CBD form is up to 4 times more potent than pure CBD (2).
  • Broad-spectrum: whole-plant hemp extract similar to full-spectrum CBD, but with THC removed (may contain trace amounts).
  • CBD isolate: pure CBD with all other hemp compounds removed.

CBDistillery CBD Oil Tincture (Best Overall)

Strength: 167 mg/ml

Pros: 

  • Full-spectrum CBD
  • Great price
  • Organic Colorado hemp source
  • Comprehensive third-party testing
  • U.S. Hemp Authority Certification

Cons:

  • No flavored options

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Our top pick for the strongest CBD oil goes to CBDistillery. This Colorado-based brand is one of the most popular choices thanks to its affordability, transparency, and thousands of satisfied reviews.

CBDistillery’s CBD oil is available in potencies as high as 167 mg per ml (5000 mg in total).

While there are some stronger options on the market, CBDistillery’s tincture stands out for containing full-spectrum CBD. This type of CBD extract is up to 4 times stronger than pure CBD (2).

CBDistillery is also one of the few companies with U.S. Hemp Authority Certification, a program that highlights compliance with leading hemp industry standards.

This third-party tested tincture is derived from organic Colorado hemp. It costs only $0.05 per mg of CBD. Relative to other CBD oils on the market, this price is considered far below average.

Lazarus Naturals High Potency CBD Tincture (Best Value)

lazarus naturals full spectrum tincture classic

Strength: 50 mg/ml

Pros: 

  • Full-spectrum CBD
  • Excellent value ($0.02–0.03 per mg)
  • Multiple flavors and bottle sizes
  • Comprehensive third-party testing
  • High-quality organic Oregon hemp source

Cons:

  • Lacks strengths above 50 mg/ml

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If you want to get the best value, we always recommend Lazarus Naturals. This Oregon-based, employee-owned CBD company offers arguably the best combination of price and quality on the market. 

Its high potency CBD tincture costs only $0.02–0.03 per mg of CBD, one of the lowest prices you’ll find anywhere.

This CBD oil has a potency of 50 mg/ml and comes in 15–120 ml bottles providing 750–6000 mg of CBD total. it is available in two formulas; full-spectrum and CBD isolate. Plus, you get multiple flavors you can choose from.

Most of the hemp used to make Lazarus Naturals’ products comes from the company’s farm in central Oregon. It’s one of the few CBD brands that have complete control over the manufacturing process from seed to bottle.

CbdMD CBD Oil Tincture (Strongest Broad-Spectrum)

Strength: 250 mg/ml

Pros: 

  • Very high potency
  • Great price
  • Comprehensive third-party testing
  • Organic Colorado/Kentucky hemp source
  • Four flavors
  • Free shipping

Cons:

  • Lower levels of minor cannabinoids than some other brands

If you’re looking for the strongest THC-free* CBD oil, we recommend cbdMD. Its tinctures are some of the most potent on the market, with strengths as high as 250 mg per ml. That’s enough for people with even the highest CBD dosage preferences.

CbdMD’s third-party tested CBD oil is made with broad-spectrum CBD extract. It’s sold in 30 ml bottles with 7500 mg of CBD in total and comes in four flavors: natural (unflavored), berry, orange, and mint.

CbdMD’s products are sourced from organic hemp grown in Kentucky and Colorado. They cost about as little as $0.03 per mg of CBD, which is much cheaper than the average market price for tinctures. 

*THC-free is defined as below the level of detection using valid scientific analytical tools.

Medterra CBD Oil Tincture (Strongest Isolate)

Strength: 100 mg/ml

Pros: 

  • Excellent price
  • 99.6% pure CBD isolate
  • Organic Kentucky hemp source
  • Comprehensive third-party testing
  • U.S. Hemp Authority-certified

Cons:

  • No flavored options

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CBD isolate is a pure form of CBD without any other compounds. Our top recommendation for a strong CBD isolate oil is Medterra. 

The company’s high-strength tincture has a potency of 100 mg/ml, providing 3000 mg of CBD in each 30 ml bottle. 

This third-party tested tincture is sourced from organic hemp grown in Kentucky. It comes with an excellent price point of $0.04 per mg of CBD, which is much lower than most competitor products.

Medterra is one of the most popular American CBD brands. It’s certified by the U.S. Hemp Authority, a program that highlights high hemp manufacturing quality standards.

NuLeaf Naturals CBD Oil (Best Reputation)

Strength: 60 mg/ml

Pros: 

  • Full-spectrum CBD
  • Over 20,000 satisfied customer reviews
  • Extensive third-party testing
  • Organic Colorado hemp source
  • Free shipping

Cons:

  • No flavored options
  • Lacks strengths above 60 mg/ml

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If you’re looking for strong CBD oil from a brand you can trust, we recommend Colorado’s NuLeaf Naturals. Founded in 2014, NuLeaf Naturals is one of the oldest and most respected CBD companies.

Its full-spectrum CBD oil has over 20,000 satisfied customer reviews with an average 4.9/5 stars rating, confirming the company’s excellent quality and customer service.

This tincture provides 60 mg CBD per ml and comes in volumes ranging from 5 to 100 ml, adding up to 300–6000 mg of CBD in total.

Sourced from organic Colorado hemp, this third-party tested CBD oil contains full-spectrum CBD dissolved in USDA certified organic hemp seed oil.

Depending on the size you choose, NuLeaf Naturals’ CBD oil costs $0.07–0.10 per mg of CBD, a reasonable price to pay for the company’s great reputation.

Endoca Hemp Oil Extract (Strongest Concentrate)

Strength: 300 mg/ml

Pros: 

  • Very high strength
  • Full-spectrum CBD
  • Organic, high-quality Danish hemp source
  • Comprehensive third-party and in-house testing

Cons:

  • Third-party tests only available upon request

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CBD concentrates are ideal for people who require extremely high doses of CBD in an easy-to-use form. They’re also known as pastes due to their thick consistency.

If you’re looking for a strong CBD concentrate, our top choice is Denmark’s Endoca, one of the pioneers of the CBD industry. 

Its hemp oil extract comes in two extremely high potencies: 200 mg and 300 mg/ml, making it one of the strongest CBD products currently available. 

Sold in a 10 ml syringe with a total of 2000–3000 mg of full-spectrum CBD, this product is also available in a raw formulation with high amounts of CBDa, the precursor (parent molecule) to CBD.

It’s sourced from organic Danish hemp grown by Endoca in partnership with local farmers and tested both in-house and by a third-party lab.

Endoca’s hemp oil extract costs €0.09 per mg of CBD, a reasonable, below-average price for a premium-grade CBD concentrate.

Endoca Strong Raw CBD Oil (Most Natural)

Strength: 150 mg/ml

Pros: 

  • Unprocessed full-spectrum formula
  • Organic, high-quality Danish hemp source
  • Comprehensive third-party and in-house testing

Cons:

  • Has a strong hemp taste

Use coupon code BESTCBD10 for 10% Off

Raw CBD oil is a special, unprocessed type of whole-plant hemp extract which contains notable amounts of CBDa: the precursor to CBD. If you prefer CBD oil in the most natural form possible, this is the ideal product for you.

Our top choice for potent, natural CBD oil is Endoca. Its strong raw tincture has a high potency of 150 mg/ml, with a total of 300, 1500, or 4500 mg of CBD+CBDa in each 2, 10, or 30 ml bottle.

Third-party tests confirm that it contains the full spectrum of hemp cannabinoids and terpenes, as well as high levels of CBDa, CBD’s parent molecule.

This tincture is derived from organic hemp grown by Endoca in Denmark. It costs €0.07-0.08 ($0.08-0.09) per mg of CBD, which is close to the average market price.

Fab CBD Oil (Best Flavor)

fab-cbd-oil

Strength: 80 mg/ml

Pros: 

  • Five flavor options
  • Full-spectrum CBD
  • Great price
  • Organic Colorado hemp source
  • Comprehensive third-party testing

Cons:

  • Not as reputable as leading brands

If you’re after the best-tasting strong CBD oil, you won’t be disappointed by Fab CBD. This Florida-based company offers CBD tinctures in five pleasant flavors: natural (unflavored), mint, vanilla, berry, and citrus.

These third-party tested, full-spectrum CBD oils come in multiple strengths. The most potent option provides 80 mg/ml for a total of 2400 mg in each 30 ml bottle.

Fab CBD’s tinctures are sourced from organic Colorado hemp. The most potent version costs $0.05 per mg of CBD — significantly cheaper than the market average for CBD tinctures.

Lazarus Naturals CBD Softgels (Strongest Capsules)

Strength: 50 mg/ml

Pros: 

  • Full-spectrum CBD
  • Low price
  • Vegan-friendly
  • Three capsule count options
  • Comprehensive third-party testing
  • High-quality organic Oregon hemp source

Cons:

  • None

If you’re looking for the strongest CBD oil capsules, the softgels from Lazarus Naturals are our top pick. 

These softgel capsules contain 50 mg of full-spectrum CBD, one of the highest potencies you’ll find. They come in bottles of 10, 40, or 200 capsules.

Like other Lazarus Naturals produced, these capsules are sourced from organic hemp grown on the Lazarus Naturals farm in Central Oregon. They’re also tested by a third-party lab to verify their lack of contaminants and potency.

With a price of only $0.02–0.03 per mg of CBD, Lazarus Naturals’ full-spectrum softgels are much cheaper than the average for CBD capsules.

Five CBD Gummies (Strongest Gummies)

five cbd full spectrum cbd gummies

Strength: 50 mg/ml

Pros: 

  • Full-spectrum CBD
  • Vegan-friendly (no gelatin)
  • Comprehensive third-party testing 
  • Organic Kentucky/Colorado hemp source
  • Free shipping

Cons:

  • May contain up to 5 mg of THC

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Strong CBD gummies are notoriously difficult to find. The popular brand Five CBD is one of the only companies that offers gummies with a high potency of 50 mg. Better yet, they’re made with full-spectrum CBD, which is more potent than pure CBD.

These gummies are flavored with various fruits and made with natural, vegan-friendly ingredients. Each bottle provides 30 gummies.

Five CBD’s gummies cost $0.04 per mg of CBD, which is cheaper than the market average for CBD gummies. They’re comprehensively tested by a third-party lab and come from organic American hemp.

Five CBD gets its name from the 5:1 ratio of CBD to minor cannabinoids in its products, which is higher than most of the brands we’ve come across.

CBDfx CBD Vape Juice (Strongest Vape Juice)

Strength: 67 mg/ml

Pros: 

  • Vape-friendly bottle
  • Five flavor options
  • Organic Kentucky hemp source
  • Comprehensive third-party testing
  • Great price

Cons:

  • Not full spectrum

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If you’re looking for a strong CBD vape e-liquid, we recommend CBDfx. This popular CBD brand is best known for its innovative products.

CBDfx’s CBD vape juice has four potencies, with the highest one providing 67 mg of CBD per ml (2000 mg in total).

It comes in a 30 ml bottle with pure CBD dissolved in a standard mix of vegetable glycerin (VG) and propylene glycol (PG) and has five delicious flavors: spearmint gum, blue raspberry, wild watermelon, strawberry kiwi, and strawberry milk.

The vape-friendly bottle has a narrow opening and protective cap to make it easier to pour and reduces leaking. CBDfx’s products are derived from organic Kentucky hemp and are comprehensively tested by a third-party lab.

As for the price, CBDfx’s CBD vape juice costs $0.05 per mg of CBD, which is cheaper than the market average for CBD e-liquids.

Lazarus Naturals CBD Balm (Strongest Topical)

Strength: 20 mg/ml

Pros: 

  • Full-spectrum CBD
  • Excellent price
  • Comprehensive third-party testing
  • High-quality organic Oregon hemp source
  • Free shipping over $25

Cons:

  • None

Lazarus Naturals is a popular, employee-owned brand known for its unbeatable combination of great prices and high quality.

Its CBD balm has a potency of 20 mg/ml, one of the highest strengths you’ll find in any topical CBD product. In comparison, most topicals contain only 0.5–10 mg of CBD per ml.

Better yet, this balm contains full-spectrum CBD. It comes in 0.5 oz and 2 oz sizes containing 300–1200 mg of CBD and has five scent options: unscented, Portland rose, lavender, cedar citrus, and soothing mint.

It’s sourced from organic hemp grown in Central Oregon, most of which comes from Lazarus Naturals’ own farm.

As for price, this strong CBD balm costs only $0.04 per mg of CBD, one of the lowest price points on the market. 

Strong CBD Oil Buying Guide

Interested in buying strong CBD oil products but not sure where to start? We’ve put together this guide to answer the most common questions.

How Does CBD Strength Work?

CBD strength, also known as potency, refers to the concentration of CBD in a product. It’s usually expressed in milligrams (mg) of CBD per milligram (ml) of oil.

For example, a tincture that contains 1000 mg of CBD in a 30 ml bottle has a potency of 1000/30 = 33.33 mg/ml. If you take the same 30 ml bottle but with 2000 mg of CBD, it would have double the potency: 2000/30 = 66.67 mg/ml. 

The second option is much stronger, which also means you’d only need to take half the amount to achieve the same dose. You can also apply this principle to other CBD products. For example, strength for capsules is simply the amount of CBD provided per capsule. 

CBD strength is a big deal when it comes to CBD oil because it can mean the difference between experiencing relief from your issues and not noticing any effects at all.

What Counts As a High CBD Strength?

Generally speaking, CBD oil concentrations of 40+ mg per ml (or per capsule/gummy) are considered high. Some CBD oil or CBD concentrate products can provide as much as 250–300 mg of CBD per ml. 

Why Do People Use Strong CBD Oil Products?

The average CBD user takes 10–40 mg doses of CBD 1-2 times a day. However, this amount may not be enough for everyone.

Whether it’s because you’re suffering from severe symptoms, have a high tolerance to cannabinoids, or simply have a less responsive endocannabinoid system, some people need to take higher doses of CBD to find relief. 

In that case, your best bet is to choose a strong CBD product. Another advantage of using potent CBD products is that you need to take less of them to get an effect.

Having said that, your chosen method of administering CBD will also influence its effectiveness.

How You Take CBD Matters

Most people use CBD in the form of oil, but there are many other product options, including capsules, gummies, vape e-liquids, and topicals. Each of these products is absorbed by the body in a different way, which affects their effectiveness.

CBD is best absorbed through the sublingual (under-the-tongue) and inhaled (vaping) routes. 

On the other hand, oral products such as capsules,  gummies, and other edibles have notoriously low bioavailability, meaning only a small portion of what you ingest reaches the blood and has a beneficial effect (3). 

That’s because much of the CBD gets lost in the digestive tract and liver before it can be absorbed.

The Type Of CBD Extract Matters

There’s one other key factor that affects the effectiveness of CBD oil — the type of CBD it contains. CBD extracts come in three main forms: isolate, full-spectrum, and broad-spectrum CBD.

CBD isolate is pure CBD with all other hemp compounds removed.

Full-spectrum CBD is a whole-plant extract containing all of the cannabinoids, terpenes, and other beneficial natural compounds found in hemp. 

All these compounds work together in synergy, making full-spectrum CBD products more effective than those made with pure CBD. Researchers gave this phenomenon the name “entourage effect” (1).

Broad-spectrum CBD is similar to full-spectrum but undergoes an additional step to remove THC (although some small traces might remain).

To illustrate what this means for potency, let’s compare two CBD oils with the same strength of 50 mg/ml. One of these oils contains CBD isolate, while the other is made with full-spectrum CBD. 

The full-spectrum version will have stronger effects because it contains additional compounds that not only synergize with CBD but also have benefits of their own. 

That’s why it’s important to not only look for a strong product but also consider how you’re using it and which type of CBD extract it contains.

How to Find the Right CBD Dose

If you’re looking for strong CBD oil, chances are you didn’t find relief from a regular-strength product.

Unfortunately, there isn’t a CBD dosage that will work for everyone. Too many factors play a role, such as how much you weigh, your genetics, and the type of product you’re taking.

The best way to find how much CBD you need to take is to start with a small amount (or whichever amount you used before) and wait two hours to see how you feel (4). If you don’t notice any effects, gradually increase the dosage over time until you start to notice a difference.

How to Choose Strong CBD Oil

There are some key factors to keep in mind if you want to find an effective, affordable, strong CBD oil product.

Look for Third-Party Tested Brands

Third-party tests are necessary to confirm the safety and potency of CBD products. They’re the only way to protect yourself from low-quality products with little to no CBD. 

Performed by an independent lab, these tests check whether a product contains as much CBD as advertised. They can also check for pesticides, heavy metals, and other contaminants.

These days, it’s expected for any serious brand to order third-party testing and post the test documents directly on its website. If these test results are not available, that’s a major red flag.

Check the Hemp Source

Since CBD is extracted from hemp, how and where this hemp is grown is also important. 

High-quality CBD products are made from organic hemp grown in Colorado, Kentucky, Oregon, or in European countries. 

You should only buy from transparent companies that list where and how their hemp is grown on their website. It’s even better if the company grows its hemp directly or uses USDA-certified organic hemp (which is still difficult to find due to regulations).

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