Crafted with care, Charlotte’s Web CBD (cannabidiol) tinctures and oils are the fruit of much love and not an insignificant amount of labor. Last month, a U.S. Food and Drug Administration advisory panel unanimously recommended approval of the CBD medication Epidiolex to treat two rare forms of childhood epilepsy. CBD oil is made from hemp plants. It may help treat pain, anxiety, and seizures. Here is what you should know before trying it.
Crafted with care, our CBD (cannabidiol) tinctures are the fruit of much love and not an insignificant amount of labor. Our precious hemp provides CBD, CBC, CBG, and other beneficial phytocompounds for this full spectrum extract of plant-powered goodness. Our product names show the amount of CBD per serving, and are available in 4 flavors: Mint Chocolate, Olive Oil, Orange Blossom and Lemon Twist.
Crafted with care, our CBD tinctures provide beneficial phytocompounds for a full spectrum of plant-powered goodness.
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What is CBD Oil?
CBD is short for cannabidiol. It is a mighty phytocannabinoid found in hemp and known for supporting body and mind in many ways. CBD specifically comes from the flowers and leaves of the hemp plant. (Not to be confused with oil that comes from hemp seeds, which contain no cannabinoids.) Why it works – The human body has a vast network of receptors, called the endocannabinoid system, which helps us maintain overall wellness and keep many of our physical processes moving in the right direction. CBD fits into the receptors, helping the body complete in its efforts to keep us in good health. Learn more about the Endocannabinoid System.
CBD Oil: All the Rage, But Is It Safe & Effective?
MONDAY, May 7, 2018 (HealthDay News) — Cannabidiol (CBD) oil has become the hot new product in states that have legalized medical marijuana.
The non-intoxicating marijuana extract is being credited with helping treat a host of medical problems — everything from epileptic seizures to anxiety to inflammation to sleeplessness.
But experts say the evidence is scant for most of these touted benefits.
Worse, CBD is being produced without any regulation, resulting in products that vary widely in quality, said Marcel Bonn-Miller, an adjunct assistant professor of psychology in psychiatry at the University of Pennsylvania School of Medicine.
“It really is the Wild West,” Bonn-Miller said. “Joe Bob who starts up a CBD company could say whatever the hell he wants on a label and sell it to people.”
Cannabidiol is extracted from the flowers and buds of marijuana or hemp plants. It does not produce intoxication; marijuana’s “high” is caused by the chemical tetrahydrocannabinol (THC).
CBD oil is legal in 30 states where medicinal and/or recreational marijuana is legal, according to Governing magazine.
Seventeen additional states have CBD-specific laws on the books, according to Prevention magazine. Those are Alabama, Georgia, Indiana, Iowa, Kentucky, Mississippi, Missouri, North Carolina, Oklahoma, South Carolina, South Dakota, Tennessee, Texas, Utah, Virginia, Wisconsin and Wyoming.
Strong Evidence for Treating Epilepsy
Only one purported use for cannabidiol, to treat epilepsy, has significant scientific evidence supporting it.
Last month, a U.S. Food and Drug Administration advisory panel unanimously recommended approval of the CBD medication Epidiolex to treat two rare forms of childhood epilepsy.
“That’s really the only area where the evidence has risen to the point where the FDA has said this is acceptable to approve a new drug,” said Timothy Welty, chair of the department of clinical sciences at Drake University’s College of Pharmacy and Health Sciences, in Des Moines, Iowa.
For the rest of CBD’s potential uses, there is simply too little evidence to make a firm conclusion.
For example, some human clinical trials suggest that CBD could be effective in treating symptoms of anxiety, particularly social anxiety, Bonn-Miller said.
This is the potential use for CBD with the most evidence after usefulness in epilepsy, but “there’s a decent gap between those two,” he said.
“There have been clinical trials in adults, but a lot smaller than the epilepsy studies that have been done in kids,” Bonn-Miller said.
CBD’s usefulness as an anti-inflammatory medication is the next most promising, but those results come mostly from animal studies, experts said.
Most Other Uses Largely Unproven
The rest of the potential uses — as an antipsychotic, antidepressant or sleep aid “have all been studied in animals, with only one or two examples of studies in humans,” Bonn-Miller said.
And Welty said the studies that have featured humans for these other CBD uses have either been case reports or studies that did not compare results against a control group that did not use the oil.
“There’s no control, so it’s basically how do you know if we’re dealing with the true effect of the drug or just simply a placebo effect because somebody thinks they’ve been given a drug that will be beneficial?” Welty said.
There also are concerns about both the quality of CBD oil being produced and its potential side effects, the experts added.
Lack of Regulation Also Concerning
Because of the legally murky nature of marijuana, the FDA has not stepped in to regulate products like CBD oil, Bonn-Miller said. States are struggling to put regulations in place, but they don’t have the deep pockets of the federal government.
Meanwhile, a 2017 study led by Bonn-Miller found that nearly 7 of 10 CBD products didn’t contain the amount of marijuana extract promised on the label.
Nearly 43 percent of the products contained too little CBD, while about 26 percent contained too much, Bonn-Miller said.
“CBD is kind of a tricky drug because it’s not very well absorbed orally,” Welty explained. “Less than 20 percent of the drug is absorbed orally. If it isn’t made in the right way, you may not be getting much drug into your systemic circulation.”
Worse, about 1 in 5 CBD products contained the intoxicating pot chemical THC, Bonn-Miller and his colleagues found.
“That’s a problem because THC can increase anxiety. It can actually make seizures worse. Those are the sorts of things you need to be careful about,” Bonn-Miller said.
“If I were a consumer, purchasing it for myself or my kid, I would want to test it so that I knew what it actually had in it, because I couldn’t trust what was on the label,” Bonn-Miller concluded.
Potential Interactions With Other Meds
Studies on CBD also have raised concerns about possible interactions with other drugs.
For example, epilepsy studies found that “there were very clearly increases in the blood levels of some other anti-epileptic drugs when people were on CBD,” Welty said.
This could mean that people taking anti-epilepsy drugs alongside CBD will need to adjust their dosage downward to avoid side effects, Welty noted.
There also is some indication that CBD might harm the liver. About 10 percent of people taking CBD in studies had increases in liver enzymes, which would indicate possible liver damage, Welty said.
“About 2 to 3 percent of individuals taking CBD actually had to discontinue because their liver enzymes went so high it was of concern to the people running the study,” he said.
Welty recommends that people interested in CBD seek out a doctor who has read up on the extract and its potential uses.
“My bottom-line advice is people really need to be under the care of a health care provider who understands CBD. They need to be monitored and managed by that individual, and not just go out and buy CBD thinking it’s going to be the answer,” Welty said.
SOURCES: Marcel Bonn-Miller, Ph.D., adjunct assistant professor, psychology in psychiatry, University of Pennsylvania School of Medicine, Philadelphia; Timothy Welty, Pharm.D., chair, department of clinical sciences, College of Pharmacy and Health Sciences, Drake University, Des Moines, Iowa
CBD Oil Benefits vs. Side Effects
While it may be helpful, it may not be safe for all
Cathy Wong is a nutritionist and wellness expert. Her work is regularly featured in media such as First For Women, Woman’s World, and Natural Health.
Verywell Health articles are reviewed by board-certified physicians and healthcare professionals. These medical reviewers confirm the content is thorough and accurate, reflecting the latest evidence-based research. Content is reviewed before publication and upon substantial updates. Learn more.
Meredith Bull, ND, is a licensed naturopathic doctor with a private practice in Los Angeles. She helped co-author the first integrative geriatrics textbook, “Integrative Geriatric Medicine.”
CBD oil is said to have a variety of possible health benefits. It is used as an appetite stimulant, a sleep aid, a treatment for skin conditions like eczema and psoriasis, for relief of pain, to prevent seizures, and much more.
Though derived from cannabis, the same plants grown for marijuana, CBD oil is not he same as pot. But that doesn’t mean that CBD oil is 100% safe. Some possible side effects, like dry mouth, may be fairly minor. Others, like anxiety, are potentially more significant. And certain potential side effects may even make using CBD oil inadvisable for some people.
This article goes over what CBD is used for, the possible side effects, and what you should look for if you choose to buy CBD.
What Exactly Is CBD Oil?
CBD oil is a hemp plant extract known as cannabidiol mixed with a base (carrier) oil like coconut oil or hemp seed oil. CBD oil comes from Cannabis indica and Cannabis sativa plants.
CBD Oil Benefits
People who support the use of CBD claim that CBD oil benefits people with a variety of health problems. CBD oil is said to be good for:
- Drug use and withdrawal
- High blood pressure
- Muscle spasms
- Poor appetite
- Skin conditions like eczema and psoriasis
As CBD has gained popularity, researchers have been trying to study it more. Still, there has not yet been a lot of clinical research focused on finding evidence to back up these health claims.
Here’s a deeper dive into what is known about a few of the purported health benefits of CBD oil.
A 2015 review of research that was published in the journal Neurotherapeutics suggested that CBD might help treat anxiety disorders.
The study authors reported that CBD had previously shown powerful anxiety-relieving effects in animal research—and the results were kind of surprising.
In most of the studies, lower doses of CBD (10 milligrams per kilogram, mg/kg, or less) improved some symptoms of anxiety, while higher doses (100 mg/kg or more) had almost no effect.
The way that CBD acts in the brain could explain why this happens. In low doses, CBD might act the same as the surrounding molecules that normally bind to the receptor that “turns up” their signaling. However, at higher doses, too much activity at this receptor site could produce the opposite effect.
There have not been many trials to look at CBD’s anxiety-relieving effects in humans. However, one was a 2019 study published in the Brazilian Journal of Psychiatry.
For the study, 57 men took either CBD oil or a sugar pill with no CBD in it (placebo) before a public-speaking event.
The researchers assessed the participants’ anxiety levels using measures like blood pressure and heart rate. The researchers also used a reliable test for mood states called the Visual Analog Mood Scale (VAMS).
The men who took 300 milligrams (mg) of CBD oil reported less anxiety than the men who were given a placebo; however, the men who took 100 mg or 600 mg of CBD oil did not experience the same effects.
CBD oil might help people with substance use disorder, according to a 2015 review published in the journal Substance Abuse.
The review looked at the findings from 14 published studies. Nine of the studies looked at the effects of CBD on animals and five looked at the effects on humans.
The researchers reported that CBD showed promise for treating people with opioid, cocaine, or psychostimulant use disorders.
However, the effects of CBD were quite different depending on the substance. For example, CBD without THC did not decrease withdrawal symptoms related to opioid use.
On the other hand, it did reduce drug-seeking behaviors in people using cocaine, methamphetamine, and other similar drugs.
Some experts suggest that CBD could help treat cannabis and nicotine dependence, but more research is needed to provide this theory.
Some studies have suggested that CBD oil may benefit the skin.
A 2020 paper, for example, found that CBD oil may help reduce inflammation, which could be useful for treating a variety of skin conditions including allergic dermatitis, acne, and psoriasis.
Proponents say CBD oil has benefits for people with cancer. Although some studies have shown promise, there have been no large studies proving the benefits of CBD oil as a cancer treatment.
Other studies suggest that CBD might interact with cancer drugs.
If you have cancer and are considering CBD, talk to your oncologist first about whether or not it is safe for you to use.
High Blood Pressure
A 2017 study found that CBD oil may reduce the risk of heart disease because it can lower high blood pressure in some people.
For the study, nine healthy men took either 600 mg of CBD or the same dose of a placebo. The men who took CBD had lower blood pressure before and after experiencing stressors like exercise or extreme cold.
The study also looked at the amount of blood remaining in the heart after a heartbeat (stroke volume). The stroke volume in the men who took CBD was lower than in was in the placebo group, meaning their hearts were pumping more efficiently.
The study suggested that CBD oil could be a complementary therapy for people with high blood pressure that is affected by stress and anxiety.
However, there is no evidence that CBD oil can treat high blood pressure on its own or prevent it in people at risk. While stress can complicate high blood pressure, it does not cause it.
Proponents say CBD oil has benefits as a sleep aid, but research so far is inconclusive.
A 2017 review pointed out that many studies have been small and limited. However, the authors also noted that because cannabinoids seem to have an effect on the sleep-wake cycle, their potential as a sleep aid is worthy of additional research.
In June 2018, the Food and Drug Administration (FDA) approved a CBD oral solution called Epidiolex.
Epidiolex is used to treat two rare forms of epilepsy in children under the age of 2: Dravet syndrome and Lennox-Gastaut syndrome. These are very rare genetic disorders that cause lifelong seizures starting in the first year of life.
Other than for these two disorders, CBD’s effectiveness for treating seizures is not known. Even with Epidiolex, it’s not clear if the anti-seizure effects are from CBD or another factor.
However, there is some evidence that CBD interacts with seizure medicines like Onfi (clobazam) and raises their concentration in the blood. More research is needed to understand the link.
Possible CBD Oil Side Effects
Clinical research has shown that CBD oil can cause side effects. The specific side effects and their severity varies from one person to the next and from one type of CBD to another.
Some common CBD side effects people report include:
- Changes in appetite
- Changes in mood
- Dizziness or fatigue
- Dry mouth
Do not drive or use heavy machinery when taking CBD oil—especially when you first start using it or switch to a new brand. Remember that some products do contain THC, even in small amounts.
Your healthcare practitioner may advise against using CBD oil if you:
- Have liver disease: CBD oil may increase liver enzymes, which is a marker of liver inflammation. Talk with your healthcare provider before taking CBD oil. You may need to have your liver enzymes checked regularly if you decide to use it.
- Have eye issues: CBD oil may also cause eye-related side effects. A 2018 study found that it may increase pressure inside the eyes. For people with glaucoma, this can make the condition worse. Some people also report dry eyes as a side effect of CBD oil.
- Are pregnant or nursing: You should not use CBD oil if you’re pregnant or breastfeeding. Even though the effects of CBD are not fully understood, it does pass through the placenta.
The American Academy of Pediatrics (AAP) further states that pregnant people should not use marijuana because of the potential risks to a developing fetus.
Can CBD Oil Get You High?
CBD oil does not get you high. Although it is from a plant that is in the same family as the marijuana plant, it does not contain tetrahydrocannabinol (THC), the compound responsible for this feeling.
|A component of the hemp plant||Separate plant in the hemp family that contains CBD and hundreds of other compounds.|
|No or trace amounts of THC||Significant amounts of THC|
|Works receptors in the brain, but not those that induce psychoactive effects (e.g., opioid receptors that help control pain, glycine receptors that impact mood control)||THC binds to cannabinoid receptors in the brain to create “high” feeling|
What CBD Oil Can Interact With
CBD oil can interact with medications, including many that are used to treat epilepsy. One of the reasons for this has to do with how your body breaks down (metabolizes) drugs.
Cytochrome P450 (CYP450) is an enzyme your body uses to break down some drugs. CBD oil can block CYP450. That means that taking CBD oil with these drugs could make them have a stronger effect than you need or make them not work at all.
Drugs that could potentially interact with CBD include:
- Anti-arrhythmia drugs like quinidine
- Anticonvulsants like Tegretol (carbamazepine) and Trileptal (oxcarbazepine)
- Antifungal drugs like Nizoral (ketoconazole) and Vfend (voriconazole)
- Antipsychotic drugs like Orap (pimozide)
- Atypical antidepressants like Remeron (mirtazapine)
- Benzodiazepine sedatives like Klonopin (clonazepam) and Halcion (triazolam)
- Immune-suppressive drugs like Sandimmune (cyclosporine)
- Macrolide antibiotics like clarithromycin and telithromycin
- Migraine medicine like Ergomar (ergotamine)
- Opioid painkillers like Duragesic (fentanyl) and alfentanil
- Rifampin-based drugs used to treat tuberculosis
Always tell your healthcare provider and pharmacist about all the medicines you take, including prescription, over-the-counter (OTC), herbal, or recreational drugs.
The interactions between these medications and CBD are often mild and you might not have to change your treatment. However, in some cases, you might have to change medications or space out your doses to avoid a reaction. Never change or stop medication without talking to your provider.
What’s a Safe Dosage of CBD Oil?
There are no guidelines for use, nor is there a “correct” dose of CBD oil. That said, the average dose range is from 5 mg to 25 mg.
Available forms include:
- Tinctures (CBD oil mixed with a base oil)
Which you choose largely comes down to your preference and what you hope to get in terms of effects. For example, putting the oil under your tongue can produce effects more quickly than swallowing a capsule that needs to be digested.
Each product works a bit differently, depending on the form, so it’s important to follow the provided directions.
How to Calculate a CBD Dose
Sprays, gummies, and capsules are easy to use because their doses are pre-measured.
Tinctures are a bit more challenging. Most oils come in 30-milliliter (mL) bottles and include a dropper cap to help you measure.
But some tinctures have concentrations of 1,500 mg per 30 mL, while others have 3,000 mg per mL or more. That means figuring out the exact amount of CBD per milliliter of oil requires a little math.
To determine an exact dose of CBD, remember that each drop of oil equals 0.05 mL of fluid. This means that a 30-mL bottle of CBD oil will have about 600 drops in it.
If the concentration of the tincture is 1,500 mg per mL, one drop would have 2.5 mg of CBD in it (1,500 mg ÷ 600 drops = 2.5 mg).
Safer Buying Practices
Remember that CBD oils are unregulated. There’s no guarantee that a product is what it claims to be on its packaging. You also can’t know for sure that it’s safe and effective.
A 2017 study reported that only 31% of CBD products sold online were correctly labeled. Most had less CBD in them than was advertised, and 21% had significant amounts of THC.
If you are interested in buying CBD products, here are a few tips that can help you make the best choice:
- Buy American: Domestically produced CBD oil might be a safer option than those that have been imported.
- Go organic: Brands certified organic by the U.S. Department of Agriculture (USDA) are less likely to expose you to pesticides and other harmful chemicals.
- Read the product label: Don’t assume that every ingredient on the product label is natural. CBD products can also have preservatives, flavorings, or thinning agents in them. If you don’t recognize an ingredient, ask the dispenser what it is or check online.
Frequently Asked Questions
CBD oil comes in different forms:
- Isolates contain only CBD.
- Broad-spectrum oils have nearly all of the components of the plant (e.g., proteins, flavonoids, terpenes, and chlorophyll), but do not have THC. oils have all the compounds including THC (up to 0.3%)
Alternative medicine practitioners believe that the compounds provide more health benefits, but the is a lack of evidence to support these claims.
Not necessarily. While the names are sometimes used interchangeably, hemp oil can also refer to hemp seed oil, which is used for cooking, food production, and skincare products. CBD oil is made from the leaves, stems, buds, and flowers of the Cannabis indica or Cannabis sativa plant. It should contain less than 0.3% THC. Hemp oil is made from the seeds of Cannabis sativa and does not have TCH in it.
It would be hard to overdose on CBD oil. Research has shown that human tolerance for CBD is very high. One study reported the toxic dose would be about 20,000 mg taken at one time.
It depends on where you live, the type of product, how it was sourced, and its intended purpose (medical or recreational). In many states, you must be 18 or 21 to buy CBD oil. Check your state’s laws.
Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
Blessing EM, Steenkamp MM, Manzanares J, Marmar CR. Cannabidiol as a potential treatment for anxiety disorders. Neurotherapeutics. 2015;12(4):825-36. doi:10.1007/s13311-015-0387-1
Scheau C, Badarau IA, Mihai LG, et al. Cannabinoids in the pathophysiology of skin inflammation. Molecules. 2020;25(3):652. doi:10.3390/molecules25030652
American Society of Clinical Oncology. Is CBD safe for people With cancer?
Babson KA, Sottile J, Morabito D. Cannabis, cannabinoids, and sleep: a review of the literature. Curr Psychiatry Rep. 2017;19(4):1-2. doi:10.1007/s11920-017-0775-9
Miller S, Daily L, Leishman E, Bradshaw H, Straiker A. Δ9-tetrahydrocannabinol and cannabidiol differentially regulate intraocular pressure. Invest Ophthalmol Vis Sci. 2018;59:5904-5911. doi:10.1167/iovs.18-24838
Bonn-Miller MO, Loflin MJE, Thomas BF, Marcu JP, Hyke T, Vandrey R. Labeling accuracy of cannabidiol extracts sold online. JAMA. 2017;318(17):1708–1709. doi:10.1001/jama.2017.11909
Cather JC, Cather JC. Cannabidiol primer for healthcare professionals. Proc (Bayl Univ Med Cent). 2020;33(3):376-379. Published 2020 Jul 6. doi:10.1080/08998280.2020.1775437
Bergamaschi MM, Queiroz RHC, Zuardi AW, Crippa JAS. Safety and side effects of cannabidiol, a Cannabis sativa constituent. Curr Drug Saf. 2011;6(4):237-249. doi:10.2174/157488611798280924