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Healthline has sole editorial control over this article. Potential uses for the products listed here are not health claims made by the manufacturers. The information in this article is intended to be general in nature. It’s not intended to be a substitute for medical advice from a healthcare professional. Healthline encourages you to make any treatment decisions with your healthcare professional.

If you’re reaching for cannabidiol (CBD) oil, odds are you’re looking for:

That being said, it’s also nice to know that what you’re reaching for is strong enough to make a noticeable difference in your symptoms.

Keep reading to learn about the strongest CBD oils and how to safely shop for and use them.

We’ll also suggest a few of the best strong CBD oils.

You can find CBD products — whether broad-spectrum, full-spectrum, or CBD isolate — in a number of different potencies. While there’s no one definition of “strong” CBD, we consider high potency to be at least 50 milligrams (mg) of CBD per 1-milliliter (mL) serving.

However, keep in mind that CBD affects everyone differently, so what feels strong to you may not feel as potent to another person. That’s especially true if you’re brand new to CBD.

Pros

  • you need less product to experience effects
  • you can scale your dosage up or down depending on your needs
  • they’re usually more cost-effective in the long term

Cons

  • requires more careful dosing
  • higher doses may not be safe for first-time CBD users
  • higher risk of experiencing side effects

Each product in this article contains at least 50 mg of CBD per mL of product.

There are lots of high-potency products out there, so we narrowed things down with criteria we think are good indicators of safety, quality, and transparency.

Each product in this article:

  • is made by a company that provides proof of third-party testing by an ISO 17025-compliant lab
  • is made with U.S.-grown hemp
  • contains no more than 0.3 percent tetrahydrocannabinol (THC), according to the certificate of analysis (COA)
  • passes tests for pesticides, heavy metals, and molds, according to the COA

As a part of our selection process, we also considered:

  • the company’s certifications and manufacturing processes
  • product potency
  • overall ingredients
  • indicators of user trust and brand reputation, such as:

Pricing guide

  • $ = under $50
  • $$ = $50–$100
  • $$$ = $101–$200
  • $$$$ = over $200

Best overall

Lazarus Naturals High Potency CBD Tincture

  • Price: $–$$$
  • CBD type: full-spectrum
  • CBD potency: 750 mg per 15-mL bottle, 1,500 mg per 30-mL bottle, or 6,000 mg per 120-mL bottle
  • COA: available on product page

This full-spectrum CBD oil is made from organic hemp seed oil and organic coconut MCT oil (an important note for those with tree nut allergies).

Lazarus Naturals grows their non-GMO hemp in central Oregon. They use ethanol to extract cannabinoids, terpenes, and flavonoids and filter the resulting product to remove impurities before third-party testing.

Reviewers are happy with the quality and strength, saying it helps them with sleep and even helps with recovery after workouts.

This brand has an assistance program that offers 60% off to veterans, people on long-term disability, and households that qualify as low-income.

Pros

  • available in classic, chocolate mint, and strawberry lemonade flavors
  • the brand offers a generous discount for qualifying buyers
  • most of the company’s hemp comes from their own farms
  • available in highly potent formulas

Cons

  • should be avoided by those with tree nut allergies
  • some reviewers don’t care for the taste

Use code “Healthline10” for 10% off your first order. One-time use only.

Best flavored

Charlotte’s Web Maximum Strength CBD Oil

  • Price: $$$–$$$$
  • CBD type: full-spectrum
  • CBD potency: 1,800 mg per 30-mL bottle, 6,000 mg per 100-mL bottle
  • COA: available online

This oil is Charlotte’s Web’s highest concentration of CBD per mL. It’s made from U.S. Hemp Authority-certified hemp without additives or dyes. To extract CBD for this oil, Charlotte’s Web uses a CO2 extraction process.

Because Charlotte’s Web CBD oils are whole-plant extracts, they include beneficial compounds like phytocannabinoids, terpenes, flavonoids, and essential fatty acids.

Charlotte’s Web offers a discount for veterans.

This oil is available in some bold flavors like mint chocolate, lemon twist, and orange blossom.

Pros

  • made from U.S.-grown certified organic hemp
  • includes beneficial compounds
  • brand offers veterans discount
  • available in mint chocolate, lemon twist, and orange blossom flavors

Use code “HEALTH20” for 20% off.

Best with money-back guarantee

CBDistillery Relief + Relax CBD Oil, Max Plus Strength

  • Price: $$$$
  • CBD type: full-spectrum
  • CBD potency: 5,000 mg per 30-mL bottle
  • COA: available on product page

This oil from CBDistillery is made with U.S. Hemp Authority-certified, non-GMO industrial hemp. It’s grown in the United States using what the brand says are natural farming practices.

Like the others we’ve looked at so far, this oil is made with MCT oil and full-spectrum CBD.

Reviewers are satisfied with the quality but have rated the pricing on the less-than-satisfied side of things; this CBD oil is at the top of our pricing guide.

CBDistillery offers a 30% discount to veterans, active military, and service officials.

Pros

  • highly potent formula
  • brand offers a 60-day money-back guarantee
  • highly rated by reviewers for quality
  • U.S. Hemp Authority certified, non-GMO
  • discount available for veterans, active military, and service officials

Cons

  • pricey
  • contains coconut oil, which is an allergen for some

Use code “healthline” for 20% off sitewide or choose the subscription option for 20% off the first 2 subscription orders and 25% off the 3rd order.

Best organic

NuLeaf Naturals Full-Spectrum CBD Oil

  • Price: $–$$$$
  • CBD type: full-spectrum
  • CBD potency: 1,800 mg per 30-mL bottle, 3,000 mg per 50-mL bottle, 6,000 per 100-mL bottle
  • COA: available online

NuLeaf Naturals CBD oil is a whole-plant extract that offers a number of naturally occurring cannabinoids and terpenes. It’s made using full-spectrum hemp extract and organic virgin hemp seed oil.

The brand’s organic hemp plants are grown in Colorado and are made with a CO2 extraction process to secure a wide range of cannabinoids, terpenes, essential oils, and other phytonutrients.

This brand offers assistance programs for veterans and active military personnel, first responders (police officers, paramedics, EMTs, and firefighters), nurses and medical providers, low-income household members, and more.

Pros

  • contains just two ingredients: full-spectrum hemp extract and organic virgin hemp seed oil
  • made from Colorado-grown organic hemp
  • assistance program offers discounts for wide range of buyers
  • available in highly potent formulas

Cons

  • not available in fun flavors

Use code “HEALTHLINE” for 20% off.

Best full-spectrum

FAB CBD Natural Full-Spectrum CBD Oil, 1,200 mg

  • Price: $
  • CBD type: full-spectrum
  • CBD potency: 1,200 mg per 30-mL bottle
  • COA: available online

This oil is made from organically grown full-spectrum hemp, MCT, and flavoring from natural sources.

Reviewers are thrilled with the taste and texture of this oil. This oil is available in flavors such as citrus, mint, natural, berry, and vanilla.

Fab CBD doesn’t appear to have an assistance program at this time, but the company does offer a rewards program.

While a lab report is available online for the 1,200 mg oil, if you want to see one for the 2,400 mg oil or any of the flavors besides natural, you’ll have to contact the company directly.

Pros

  • available in citrus, mint, natural, berry, and vanilla flavors
  • organically farmed in Colorado
  • non-GMO and pesticide-free

Cons

  • contains coconut oil, so it isn’t for those with tree nut allergies
  • no assistance program available for discounts
  • brand isn’t certified compliant with the FDA’s current good manufacturing practices (CGMPs)
  • there’s only a COA for the 1,200 mg CBD natural flavor available on FAB CBD’s website

Use code “HEALTHLINE” for 20% off your first purchase.

Best with THC

Cornbread Hemp Distilled CBD Oil

  • Price: $$$
  • CBD type: full-spectrum
  • CBD potency: 1,500 mg per 30-mL bottle
  • COA: available online

Cornbread Hemp‘s Distilled CBD Oil uses the brand’s trademarked Flower-Only extraction method, which is a method where the stalk, leaves, and stems of the hemp plant are not used during the extraction process.

The brand also says that this CBD oil is sourced from USDA organic hemp grown in Kentucky and contains no flavoring or preservatives.

The oil is made with two ingredients, MCT coconut oil, and organic hemp flower extract. This CBD oil does contain THC oil, too. The 1,500-strength bottle includes 30 mg THC, according to the product page.

Cornbread Hemp also offers an assistance program for veterans, first responders, medical personnel, and other groups.

Pros

  • made with flower-only hemp extract
  • contains no flavoring or preservatives
  • company offers generous assistance program
  • 30-day money-back guarantee

Cons

  • contains coconut oil, which is an allergen for some
  • contains THC, which is a drawback for those looking to avoid THC

Best unflavored

Spruce CBD 2,400 mg Lab Grade CBD Oil

  • Price: $$$$
  • CBD type: full-spectrum
  • CBD potency: 2,400 mg per 30-mL bottle
  • COA: available upon request

According to Spruce CBD, this oil is lab-grade, third-party tested, and all-natural, and is packed with 80 mg of full-spectrum CBD per 1 mL.

The oil only contains two ingredients — hempseed oil and CBD oil — and the brand says that they don’t provide flavor options because the addition of flavor additives would alter the potency of the oil.

There is a very minimal amount of THC in this oil, so the brand discourages use if you are looking to stay away from the cannabinoid.

Spruce CBD doesn’t seem to offer assistance programs at this time, but they do provide information on how to use certain healthcare plans to help cover CBD costs.

Pros

  • vegan and gluten-free
  • contains just two ingredients: hemp seed oil and CBD oil
  • brand is a family business

Cons

  • pricey
  • company doesn’t yet offer assistance programs
  • not available in flavored options

Best CBD isolate

Medterra CBD Oil

  • Price: $$$
  • CBD type: isolate
  • CBD potency: 3,000 mg per 30-mL bottle, 6,000 per 60-mL bottle
  • COA: available on product page

This Medterra oil is made using CBD isolate, making it a good option if you want to avoid THC altogether.

Formulated with coconut-derived organic MCT Oil, Medterra’s CBD oil is non-GMO and made in the United States.

The brand says their plants are organically grown and guaranteed to be free of contaminants.

The website explains that they use a carbon dioxide (CO2) extraction process to draw CBD from the plant material and filter out unnatural substances.

Reviewers seem highly satisfied with this product, some calling it a “game-changer.”

Pros

  • good option for those looking to avoid THC
  • non-GMO, made in the United States
  • brand is U.S. Hemp Authority certified
  • contains just two ingredients: hemp extract and organic MCT oil

Cons

  • not for those with tree nut allergies
  • not available in flavors
  • brand isn’t yet third-party CGMP certified, but the products are processed in a certified facility

BrandType of CBDPriceFlavors Potency range
Lazarus Naturals High Potency CBD Tincturefull-spectrum$–$$$classic, chocolate mint, strawberry lemonade750 mg per 15-mL bottle, 1,500 mg per 30-mL bottle, or 6,000 mg per 120-mL bottle
Charlotte’s Web Maximum Strength CBD Oilfull-spectrum$$$–$$$$mint chocolate, lemon twist, orange blossom1,800 mg per 30-mL bottle, 6,000 mg per 100-mL bottle
CBDistillery Relief + Relax CBD Oil, Max Plus Strengthfull-spectrum$$$$unflavored 5,000 mg per 30-mL bottle
NuLeaf Naturals Full-Spectrum CBD Oilfull-spectrum$–$$$$unflavored 1,800 mg per 30-mL bottle, 3,000 mg per 50-mL bottle, 6,000 per 100-mL bottle
FAB CBD Natural Full Spectrum CBD Oilfull-spectrum$$$citrus, mint, natural, berry, vanilla 1,200 mg per 30-mL bottle
Cornbread Hemp Distilled CBD Oilfull-spectrum$$$unflavored 1,500 mg per 30-mL bottle
Spruce CBD Lab Grade 2,400 mg CBD Oilfull-spectrum$$$$unflavored 2,400 mg per 30-mL bottle
Medterra CBD Oilisolate$$$unflavored3,000 mg per 30-mL bottle, 6,000 per 60-mL bottle

Strong CBD isn’t the best choice for everyone, especially for people new to CBD.

If you’re new to CBD, start with the lowest dose you can before slowly increasing it until it feels right for you. This means beginning with low dose CBD products and avoiding full-spectrum CBD products.

Broad-spectrum CBD and CBD isolate seem to be good options for people new to CBD. Seeing how you react with a low dose option before testing the waters with stronger products is a good rule of thumb.

Strong CBD is also not for people who are taking other supplements or medications. CBD can interact with medications, especially those with a grapefruit warning. Talking with your healthcare professional before adding CBD to your routine is always a good idea.

Strong CBD may come with an increased risk of side effects like fatigue, diarrhea, appetite changes, and weight changes. People looking to avoid side effects shouldn’t take high doses of CBD.

Strong CBD is also not for people looking to avoid THC. Many strong CBD products are full-spectrum, which contain trace amounts of THC. Even if your CBD product is listed as THC-free, it’s still possible that it contains enough THC to show up on a drug test.

For now, the FDA does not guarantee the safety, effectiveness, or quality of over-the-counter CBD products.

You can avoid purchasing CBD products that are misrepresented or mislabeled by looking for products that come with an up-to-date COA from a reputable third-party lab.

Once you have the COA, review it to make sure the amount of CBD and THC that’s in the product matches what’s advertised.

Contaminant testing results are another important area to review. These vary by brand, but in general, it’s good practice to keep an eye out for testing results for pesticides, heavy metals, and molds.

It’s also always a good idea to make sure you’re buying from a company that’s transparent about where they grow their hemp and how they produce their products.

This information should be readily available on the brand’s website so you can review it before buying.

What happens if you take too high of a dose of CBD oil?

Research on the safety of CBD is limited. However, a 2015 study suggests that 1,500 mg doses of CBD per day are well-tolerated by many people.

You may experience some side effects if you take higher doses of CBD.

What are the side effects of CBD oil use?

Though research suggests CBD is pretty safe to use, some people experience side effects. These include:

  • fatigue
  • diarrhea
  • changes in appetite
  • changes in weight

If you decide to mix CBD oil into drinks and food, this may affect absorption. If you take it with a high fat meal, research from 2020 suggests that you may absorb more of it, which may increase the risk of side effects.

It’s a good idea to avoid touching the dropper to your mouth to prevent bacterial contamination and to safeguard the quality of the oil.

If you take any medications or supplements, talk with your healthcare professional before trying CBD.

Learn more about how CBD can interact with medications.

Is stronger CBD oil better?

It may take some trial and error with CBD oils at varying potency levels to decide if a stronger CBD oil is best for your needs.

Side effects may be more likely at higher dosages.

A 2020 systematic review of human trials showed CBD to be relatively safe at various dosages. Most of the studies mentioned in this review use daily dosages of 300 to 600 mg.

The CBD safety conclusion and dosage range provided are specific to the patient populations included in the studies.

CBD oils can be used by placing them under your tongue using a dropper (most CBD oils come with one) or by mixing them into drinks and food.

Shake the bottle before dropping the dose under your tongue. If you’re looking for maximum absorption, keep it under your tongue for 30 seconds to a few minutes before swallowing.

To store, safely secure the cap on your CBD oil and keep it in a dry, cool place. You can also stick it in the refrigerator to extend its shelf life.

CBD dosage

To learn how many drops to use, follow the recommended dosage provided by the manufacturer or your healthcare professional.

Proper serving sizes for CBD vary widely depending on individual factors, like:

  • intended use
  • body weight
  • metabolism
  • body chemistry

The four factors listed above should be considered on a case-by-case basis as CBD can work differently in individuals.

It’s always best to start with a small dosage so that, if needed, you can increase it over time until you reach your preferred results.

Doses should be spaced at least 4 to 6 hours apart but can be taken at any time of day. Of course, if you’re looking to improve sleep, take it before bed.

The immediate effects of CBD typically happen within 30 to 90 minutes. Depending on your preferred method of administration, the immediate effects may vary.

Long-term results may take a number of weeks to accomplish.

Although there’s no one definition of the “strongest” CBD, we consider high potency to be at least 50 mg of CBD per 1-mL serving.

Remember to start with a small dosage so that you can increase the dose and frequency over time until you reach your desired effect.

Talk with your healthcare professional before trying any CBD products.

Is CBD legal?The 2018 Farm Bill removed hemp from the legal definition of marijuana in the Controlled Substances Act. This made some hemp-derived CBD products with less than 0.3% THC federally legal. However, CBD products containing more than 0.3% THC still fall under the legal definition of marijuana, making them federally illegal but legal under some state laws. Be sure to check state laws, especially when traveling. Also, keep in mind that the FDA has not approved nonprescription CBD products, and some products may be inaccurately labeled.


Breanna Mona is a writer based in Cleveland, Ohio. She holds a master’s degree in media and journalism and writes about health, lifestyle, and entertainment.