Overall CBDC Brand Rating for Charlotte’s Web: 9.4/10

Considered one of the oldest brands in the CBD industry, Charlotte’s Web was founded in 2012 by the Stanley brothers from Colorado. The brand provides full-spectrum CBD and CBD isolate products inside and outside the US.

Charlotte’s Web is certified by the US Hemp Authority and accredited by the Better Business Bureau (BBB). The brand also has a CBD dropshipping program that allows customers to sell Charlotte’s Web products.

Although the CBD company is not organic-certified, Charlotte’s Web already conducts organic practices as part of the process of securing official organic certification from the US Department of Agriculture.

Charlotte’s Web requires a batch number to access its lab results. The certificates of analysis (COAs) are available to customers who want to check the third-party lab results for the product they purchased.

Unfortunately, the brand has been hit with class action lawsuits by the US Food and Drug Administration (FDA) over alleged violations of federal Food, Drug and Cosmetic Act, including product mislabeling claims. 

The brand reiterates that the complaints are without merit, claiming that it complies with the law. The company continues to receive positive reviews from its customers who experienced improvements in their health after using Charlotte’s Web products.

Looking for something different? See our top CBD Oil for 2021.

Charlotte’s Web Company Summary

  • Charlotte’s Web was founded in 2012 by the Stanley brothers after creating a low-THC strain of hemp plants to help Charlotte Figi, a little girl with Dravet Syndrome. 
  • The brand offers full-spectrum CBD and CBD isolates in oils, capsules, gummies, topicals, and pet products.
  • Charlotte’s Web aims to help people seeking a healthier mind, body, and soul by providing high-quality CBD products
  • The brand is certified by the US Hemp Authority and has secured accreditation from the BBB.

Charlotte’s Web Pros and Cons

Pros Cons
Certified by the US Hemp Authority and accredited by the BBB Regulatory issues
CBD dropshipping program Products not certified organic
Autoship program Lab tests not readily available
Philanthropic partnerships
Growing family of brands

Charlotte’s Web Pros

  • Charlotte’s Web is certified by the US Hemp Authority and accredited by the Better Business Bureau.
    The US Hemp Authority gives consumers confidence in CBD products by providing high standards, best practices, and self-regulation.
    BBB, a group that helps consumers from the US, Canada, and Mexico to find businesses and charities they can trust, awarded the brand an A rating.
  • The brand has a CBD dropshipping program that allows customers to sell Charlotte’s Web products without an inventory of products.
  • The brand has an autoship program that offers various benefits to customers, including free two-day shipping on their first orders, 10% more affordable orders, and reward points.
  • Charlotte’s Web creates partnerships with various organizations, including Women’s Bean Project, Adaptive Training Foundation, Denver Urban Gardens, and Rodale Institute.
  • Charlotte’s Web also offers CBD products under its other brands, CBD MEDIC and CBD CLINIC. The two brands offer a wide range of CBD topicals, including oils, creams, and hemp extracts.

Charlotte’s Web Cons

  • The brand faces two lawsuits: first for claiming that its products are dietary supplements and second for allegedly mislabeling products.
  • Although the brand is not certified organic, Charlotte’s Web practices as such in hopes of becoming organic-certified in the future.
  • Charlotte’s Web requires a batch number to access its lab results. Although customers may check the lab tests for their products, visitors on the brand’s website are not granted access to the certificates of analysis (COAs).

Review of Charlotte’s Web Products

Charlotte’s Web CBD Oil

The brand offers its CBD oil in four flavors: Lemon Twist, Orange Blossom, Olive Oil, and Mint Chocolate. Charlotte’s Web’s hemp oils have a CBD concentration range from 210mg to 1,800mg.

The brand’s CBD Oil contains terpenes, fatty acids, flavonoids, full-spectrum CBD, and over 80 phytocannabinoids from cannabis

A 2019 study discovered that the cannabis plant possessed anticancer, antimicrobial, antifungal, antiviral, analgesic, anti-inflammatory, and antiparasitic properties. According to the same study, terpenes helped relieve skin inflammation(1).

The brand’s CBD oil tinctures come with a measured dropper for precise dosing. The brand claims that the product is for CBD users who need help focusing, managing stress, relieving pain, and sleeping.

According to a 2018 study, CBD helped patients suffering from sleep disorders and chronic pain(2)

Consumer reviews show users experienced an improvement in their sleep after using Charlotte’s Web hempCustomers said its CBD oils helped with issues linked to sleep, anxiety, and stress.

The brand recommends a dose of 1ml of CBD hemp extract daily, encouraging dosing consistency to achieve desired results. You may mix the CBD oil to your favorite food if you do not like the earthy, grassy taste of tinctures.

Users must store the hemp oil at room temperature away from light. Touching the dropper to your mouth or tongue must also be avoided to preserve product quality.

Aside from the full-spectrum CBD products, the brand also has a Charlotte’s Web CBD Isolate CBD Oil with 600mg of CBD. Its CBD oil is available in 30ml bottles and 100ml bottles. 

According to the brand, the THC-free product allows users to customize the level of hemp extract in their daily CBD routine. Charlotte’s Web believes the CBD isolate provides an easy way to adjust the CBD you are taking for overall cellular and molecular health, allowing you to feel more balanced and in control.

Charlotte’s Web CBD Topicals

The brand offers a wide range of CBD products under its topical product line, including creams, balms, roll-ons, sprays, ointments, balm sticks, gels, patches, and facial cleansers.

The brand’s most popular offering from the product line is Charlotte’s Web Hemp-Infused Cream With CBD. According to the brand, the creams’ formulations might help people wanting to revitalize, restore, and rejuvenate their sensitive skin.

Charlotte’s Web Hemp-Infused Cream With CBD contains aloe vera, coconut oil, oat extract, and sea buckthorn oil. The product has a concentration of 300 mg of CBD, and it is available in 30ml and 75ml bottles.

Another popular CBD topical from the brand is the Charlotte’s Web Hemp-Infused Balm Stick With CBD, which contains 525mg of CBD. Ingredients include menthol, peppermint oil, turmeric oil, ginger oil, and full-spectrum hemp extract

A research discovered that peppermint oil had antimicrobial and antiviral properties, as well as antioxidant, antitumor, and antiallergenic potentials(3)

Meanwhile, a 2011 study found that turmeric oil had significant anti-inflammatory properties and might help alleviate pain(4).

Another study concluded that ginger oil also had anti-inflammatory and anti-arthritic properties(5).

The product is formulated to be used after waking up, after an exercise, or before sleeping. You may use the balm stick on larger areas of your body twice a day, at daytime and before bedtime. 

Charlotte’s Web’s Hemp-Infused Cooling Gel With CBD is another well-known product from the brand. 

The cooling gel is recommended for CBD users who want a more mindful wellness routine. The gel may also be applied twice a day, once in the morning and once at night.

The brand claims that the CBD cooling gel may help users who are active in the gym achieve personal fitness goals.

The brand claims that its CBD topicals are free from synthetic fragrances, artificial colors or dyes, sulfates, and polyethylene glycol (PEG), which contains toxic compounds. 

Charlotte’s Web also offers CBD products recommended for pain relief, including the  Charlotte’s Web Arthritis Aches & Pain Relief Ointment. 

The ointment contains 200mg of CBD and menthol, camphor, beeswax, clove oil, cottonseed oil, eucalyptus oil, frankincense oil, jojoba seed oil, and lavender oil.

The brand claims that the ointment is formulated for effective absorption and might help relieve short-term arthritis symptoms, including joint pain and stiffness.

Most product reviews show that users experienced relief from back pains and pains on hands and feet after using the ointment.

A study concluded that topical CBD improved pain and inflammation from osteoarthritis and rheumatoid arthritis(6).

Charlotte’s Web CBD Gummies

The brand’s gummies come in three variants: Calm, Sleep, and Recovery. Its most popular CBD gummy variant is the  Charlotte’s Web CBD Gummies: Sleep 60-ct worth $44.99.

The brand claims the sleep gummies promote sound, quality sleep and regular sleep cycles.

The sleep gummies contain 10mg of CBD per serving plus melatonin, the hormone released by the gland responsible for regulating the body’s sleep and wake cycle.

Charlotte’s Web recommends taking one gummy 30 minutes before bedtime. 

However, the brand advises CBD users to consult their physicians before taking the product, especially if you are pregnant or taking medications for serious medical conditions. 

The brand also advises against driving after taking the gummy as the product causes drowsiness.

Meanwhile, the calm CBD gummies are formulated to help users face life’s stressful situations with ease and better focus.

The gummies contain full-spectrum CBD and a blend of lemon balm. According to a 2014 study, lemon balm has been used to improve mood and alleviate anxiety(7).

You may take the gummies twice daily, and two gummies contain 10mg of CBD. The brand recommends the product to CBD users struggling with anxiety and needs to relax.

Meanwhile, each serving of the brand’s recovery CBD gummies contains 10mg of CBD, 25mg of ginger, and 50mg of curcuminoids from turmeric.

The product is recommended for individuals with active lifestyles. The suggested dosage for the product is two gummies before or after exercising.

Charlotte’s Web CBD Capsules

The brand also offers capsules in two CBD concentrations: 15mg and 25mg, with the former available for $39.99 and the capsules with high CBD concentration sold at $74.99. 

The capsules contain extra virgin olive oil and CO2-extracted full-spectrum CBD. 

According to a recent study, extra virgin olive oil possesses health-promoting effects that may alleviate inflammation(8)

The capsules are recommended for CBD users with demanding lifestyles . A 2012 study concluded that CBD had anxiolytic properties, which are present in medications used to reduce anxiety(9).

The brand encourages users to be consistent in taking liquid capsules to achieve the best results possible. The recommended dosage for the product is one capsule per day.

The product is available in 30-, 60-, and 90-count capsules per bottle. The brand claims that its CBD capsules are kosher, gluten-free, vegan, and allergen-free.

Charlotte’s Web CBD Pet Products

Charlotte’s Web offers CBD pet products for pets who need the extra boost of energy. The brand also has offerings for pets who need to calm down. 

One of the brand’s CBD products is the Charlotte’s Web Full-Spectrum Hemp Extract Drops With 17mg of CBD For Dogs, which can be enjoyed in two options: chicken or unflavored

The CW hemp for pets is available in 30ml and 100ml bottles. You may give your pets two servings of the hemp extract every day.

There are three variants for the brand’s CBD chews: Calm, Hip & Joint, and Senior.

The calming chews are composed of a botanical blend of naturally occurring CBD, valerian root, passionflower extract, and chamomile. 

According to a study, chamomile had antispasmodic (spasm relief) and anxiolytic (anti-anxiety) properties for animals(10).

The brand claims that the pet chews may help keep your dog calm and relaxed. 

Meanwhile, the Hip & Joint chews contain a blend of the brand’s full-spectrum hemp extract, turmeric, glucosamine, and chondroitin. 

A 2015 research concluded that when used together, glucosamine and chondroitin helped treat the symptoms of osteoarthritis(11). According to Charlotte’s Web, the chews might help support healthy hips and joints for your pets.

The senior CBD chews contain elderberry, vitamin E, docosahexaenoic acid (DHA), and CBD. A study discovered that elderberry possessed antioxidant, antidiabetic, anti-inflammatory, and antidepressant properties(12)

The brand claims that the Senior chews provide natural support for older dogs’ brain health and cognitive function.

The brand also offers the Charlotte’s Web Canine Hemp-Infused Balm with naturally occurring CBD. The product may be used topically and as often as needed.

According to the brand, the balm supports skin health and was formulated specifically for dogs with sensitive skin.

In a 2018 study, veterinarians noted that CBD helped in acute and chronic pain management, anxiety, and seizure in pets(13).

Product Summary

Recommended for Optimizing wellness
Source of Hemp US
Popular Products
  • Charlotte’s Web CBD Oil: 17mg CBD/1ml
  •  Charlotte’s Web Original Formula CBD Oil – 50mg CBD/1ml
  •  Charlotte’s Web CBD Gummies: Sleep (60-ct)
  •  Charlotte’s Web CBD Oil: 60mg CBD/1ml
Types Sold Full-spectrum CBD and CBD isolates
Range of Products/Forms CBD oils, capsules, gummies, topicals, and pet products
Price Range From $14.99 for the Charlotte’s Web Hemp-Infused Balm with CBD to $271.17 for the Charlotte’s Web Realm of Caring Bundle
Extraction Method CO2 extraction and alcohol extraction
Lab Testing Transparency & Availability A batch number is required to access lab results.
CBD Concentration per Serving Range 30ml of Charlotte’s Web CBD Oil has a CBD concentration range from 226.26mg/unit to 2,570.4mg/unit
Potency 30ml of Charlotte’s Web CBD Oil has a CBD potency range from 7.54mg/ml to 75.61mg/ml
THC Range of Products % Non-detectable
Flavors CBD oil: Mint Chocolate, Lemon Twist, Orange Blossom, and Olive Oil

Gummies: Lemon-lime, raspberry, and ginger 

Tincture Carrier Oil Hempseed oil, medium-chain triglyceride (MCT) oil
Lab Results A batch number is required to access lab results.
Shipping/Delivery Takes seven business days for standard shipping and one to two business days for expedited shipping; free shipping on orders over $74 within the USA
Guarantee No data available
Refund Policy 30-day refund policy
Contaminants Free from harmful chemicals and pesticides 
Vegan and Gluten-Free Products are vegan and gluten-free.
Customer Service Call +1(855) 790-8169 / + 1 (719) 419-8169 or leave a message on the website’s Contact Us page
Country Served USA and select international countries

Charlotte’s Web CBD products are sourced from locally grown hemp. However, the hemp they use is not certified organic. 

Charlotte’s Web also offers less than 0.3% THC and THC-free products. 

Source of Hemp

Charlotte’s Web sources its hemp from Colorado, Oregon, and Kentucky in the USA. 

The brand’s most popular products are the Charlotte’s Web CBD Oil: 17mg CBD/1ml, Charlotte’s Web Original Formula CBD Oil – 50mg CBD/1ml, Charlotte’s Web CBD Gummies: Sleep (60ct), and Charlotte’s Web CBD Oil: 60mg CBD/1ml.

Types Sold

Charlotte’s Web products contain full-spectrum CBD and CBD isolates.

Range of Products/Forms

Charlotte’s Web offers various CBD products, including CBD oils, capsules, gummies, topicals, and CBD for dogs. 

Price Range

The least expensive Charlotte’s Web CBD product is the Charlotte’s Web Hemp-Infused Balm with CBD at $14.99. The most expensive product is the Charlotte’s Web Realm of Caring Bundle at $271.17. 

Extraction Method

Charlotte’s Web uses a mix of CO2 extraction and isopropyl alcohol (IPA) extraction for most of its products. The brand uses the IPA extraction method for the brand’s Original Formula CBD Oil. 

The CO2 extraction method uses pressurized chambers and pumps to produce very high and low temperatures. The extraction process uses one chamber to hold pressurized CO2, while another pressurized chamber holds the hemp plant in place.

Each extraction method has its advantages. The brand believes that the supercritical CO2 extraction method is extremely efficient, while IPA extraction is an artisanal process.

The term artisanal means that the process involves a traditional or a non-mechanized approach. Although the process is not as efficient as the CO2 extraction, it is highly effective in extracting various beneficial compounds from hemp plants.

The brand believes that both processes produce high-quality CBD products.

Lab Testing Transparency & Availability

Lab results or Certificates of Analysis (COAs) are available on the brand’s website. However, the lab results are only accessible if you have a product batch number.

CBD Concentration per Serving Range

Third-party lab results indicate that 30ml of Charlotte’s Web CBD Oil has a CBD concentration range from 226.26mg/unit to 2,570.4mg/unit.

Potency

Third-party lab results indicate that 30ml of Charlotte’s Web CBD Oil has a CBD potency range from 7.54mg/ml to 75.61mg/ml of CBD.

THC Range of Products %

Charlotte’s Web claims that its products contain less than 0.3% of tetrahydrocannabinol (THC), making the products legal at the federal level in the US.  

Although CBD is legal, it is recommended to visit your physician before taking CBD. CBD is still unregulated by the US Food and Drug Administration.

Flavors

Charlotte’s Web CBD oils are available in the following flavors: Mint Chocolate, Lemon Twist, Orange Blossom, and Olive Oil. Meanwhile, CBD gummies may be enjoyed in lemon lime, ginger, and raspberry flavors.

Tincture Carrier Oil

Charlotte’s Web uses hempseed oil and MCT oil as its carrier oils.

Lab Results

Lab results or Certificates of Analysis (COAs) are available on the brand’s website. However, the lab results are only accessible if you have a product batch number.

The brand claims that its products are safe, organic, and made from non-GMO ingredients.

Shipping/Delivery

Charlotte’s Web offers free shipping on orders over $74 within the US. Standard shipping takes up to seven business days, and expedited shipping takes one to two business days. 

Refund Policy

Customers may request a refund within 30 days of the purchase date.

Contaminants

The brand claims that its products are free from pesticides, residual solvents, heavy metals, and bacteria.

Vegan and Gluten-Free

According to the product pages, Charlotte’s Web products are vegan and gluten-free. 

Customer Service

You may call +1(855) 790-8169 / + 1 (719) 419-8169 or leave a message on the website’s Contact Us page for any inquiries.

Charlotte’s Web has a discount program for veterans as a way to thank them for their service. 

Under the program, a 15% off discount is granted for select products, while the Charlotte’s Web Original Formula 100ml is offered at a discounted price of $250. 

However, note that the bulk products and the Charlotte’s Web Original Formula 30ml are not eligible for discount.

Country Served

The brand ships its products inside and outside the US.

More About Charlotte’s Web

Charlotte’s Web was established in 2012 when the Stanley brothers, a group of seven brothers, developed a new hemp strain, which was high in CBD but low in THC

The new hemp strain was shared with Charlotte Figi, a little girl with Dravet Syndrome, a rare form of epilepsy. According to the brand, the new strain of hemp helped Figi’s symptoms and reduced the frequency of her seizures.

After seeing the potential of the new strain, the Stanley brothers founded Charlotte’s Web. The team oversees production from seed to bottle, beginning with high-quality raw ingredients. 

The brand claims to use extracts only from the flowers and stems of hemp, the parts of the plants with high concentrations of CBD.

Charlotte’s Web is in the process of securing official organic certification from the United States Department of Agriculture. 

Charlotte’s Web claims that it already practices organic and sustainable cultivation methods to enhance the overall health of the soil and its crops.

FAQs

What Is CBD Oil?

CBD, short for cannabidiol, is a phytocannabinoid found in hemp and popular for having health benefits. Other phytocannabinoids in hemp plants include cannabichromene (CBC) and cannabigerol (CBG).

CBD is specifically extracted from the flowers and leaves of the hemp plant. It produces cannabinoids that pass the human body’s endocannabinoid system (ECS), which is a biological system with a vast network of receptors.

ECS helps the body maintain overall wellness and keep several physical processes moving in the right direction.

Most brands mix CBD with tincture carrier oils to create CBD oil products. Some brands use hempseed oil, which is sourced from hemp seeds, while others use medium-chain triglyceride (MCT) oil, which is mostly sourced from coconut oil.

Aside from CBD oils, CBD can be taken in the form of topicals, gummies, teas, vape juice, or capsules. CBD oil can be made using whole-plant CBD or full-spectrum CBD, CBD isolates, or broad-spectrum CBD.

Will Charlotte’s Web CBD Show Up on a Drug Test?

The brand offers full-spectrum CBD products, meaning that in addition to CBD and more than 80 other cannabinoids in hemp, the products may also contain less than 0.3% of tetrahydrocannabinol (THC).

Much like how the consumption of poppy seeds may result in a positive drug test for opioids, the consumption of hemp products may also lead to a positive drug test for THC. THC is inherently present in trace amounts in hemp plants

If you need to undergo drug testing, the brand recommends consulting your healthcare provider before taking any hemp products. 

According to Charlotte’s Web, there are several factors to consider when undergoing drug tests after taking CBD, including individual biochemistry, the potential for the conversion of cannabinoids, and the possibility of discovering trace, but legal, amounts of THC inherent in hemp products.

How Do You Choose a CBD Product and How Much Do You Have to Take?

Charlotte’s Web provides detailed serving information on product labels and in the product details on the brand’s website. 

If you are a new CBD user, the brand recommends Charlotte’s Web 7mg/1ml CBD Oil concentration. You may move on to products with stronger CBD concentration, such as the Charlotte’s Web 17mg/1mL CBD Oil or the Charlotte’s Web Original Formula CBD Oil achieve your personal wellness goals. 

The brand recommends being consistent in taking CBD products because missing days or servings may affect the product’s effectiveness.

Is Charlotte’s Web a Legitimate Brand?

Charlotte’s Web is a legitimate CBD brand certified by the US Hemp Authority and accredited by the BBB. It has been featured in news outlets such as CNN, The New York Times, NBC’s Today Show, The View, 60 Minutes, and The Wall Street Journal.

Where and How Can You Buy Charlotte’s Web Products?

You may buy Charlotte’s Web products from the brand’s website. To buy online, you have to provide your delivery information at the checkout page, pay online, and wait for your order to arrive.

You may also buy the brand’s CBD products from other retailers.

What Are the Side Effects of CBD?

Much like other compounds, CBD may also cause side effects, including diarrhea, dry mouth, reduced appetite, tiredness, and drowsiness. CBD may also interact with other medications inside your body(14).

If it is your first time using CBD products, you must consult your physician before taking CBD. Seeking professional advice is essential, especially if you are taking medications for serious medical conditions.

Conclusion

The Charlotte’s Web brand aims to pioneer a better future for CBD enthusiasts by producing the best CBD products.

Product reviews from customers note that the brand’s full-spectrum CBD and CBD isolates are safe and effective.

With the brand’s high-grade CBD products certified by the US Hemp Authority, it remains on track with helping loyal customers achieve improved health and wellness.


  1. Joshee, N., Dhekney, S., & Parajuli, P. (2019). Therapeutic and Medicinal Uses of Terpenes. Medicinal Plants, 333-359. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7120914/
  2. Shannon, S., Lewis, N., Lee, H., & Hughes, S. (2019). Cannabidiol in anxiety and sleep: a large case series. The Permanente Journal, 23. https://www.ncbi.nlm.nih.gov/pmc/articles/pmc6326553/
  3. McKay, D. & Blumberg, J. (2006). A review of the bioactivity and potential health benefits of peppermint tea (Mentha piperita L.). Phytotherapy Research, 619-633. https://pubmed.ncbi.nlm.nih.gov/16767798/
  4. Liju, V., Jeena, K., & Kuttan, R. (2011). An evaluation of antioxidant, anti-inflammatory, and antinociceptive activities of essential oil from Curcuma longa. L. Indian Journal of Pharmacology, 526-531. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3195121/
  5. Funk, J., Frye, J., Oryazo, J., Chen, J., Zhang, H., & Timmermann, B. (2016). Anti-Inflammatory Effects of the Essential Oils of Ginger (Zingiber officinale Roscoe) in Experimental Rheumatoid Arthritis. PharmaNutrition, 123-131. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5115784/
  6. Hammell, D., Zhang, L., Abshire, S., McIlwrath, S., Stinchcomb, A., & Westlund, K. (2016). Transdermal cannabidiol reduces inflammation and pain-related behaviours in a rat model of arthritis. European Journal of Pain, 936-948. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4851925/
  7. Scholey, A., Gibbs, A., Neale, C., Perry, N., Ossoukhova, A., Bilog, A., Kras, M., Scholz, C., Sass, M., & Werner, S. (2014). Anti-Stress Effects of Lemon Balm-Containing Foods. Nutrients, 4805-4821. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4245564/
  8. De Santis, S., Cariello, M., Piccinin, E., Sabba, C., & Moschetta, A. (2019). Extra Virgin Olive Oil: Lesson from Nutrigenomics. Nutrient, 2085. http://ncbi.nlm.nih.gov/pmc/articles/PMC6770023/
  9. Schier, A., Ribeiro, N., Silva, A., Hallak, J., Crippa, J., Nardi, A., & Zuardi, A. (2012). Cannabidiol, a Cannabis sativa constituent, as an anxiolytic drug. Brazillian Journal of Psychiatry, 104-110. https://pubmed.ncbi.nlm.nih.gov/22729452/
  10. McKay, D. & Blumberg, J. A review of the bioactivity and potential health benefits of chamomile tea (Matricaria recutita L.). Phytotherapy Research, 519-530. https://pubmed.ncbi.nlm.nih.gov/16628544/
  11. Zeng, C., Wei, J., Wang, Y., Xie, D., Yang, T., Gao, S., Li, Y., Luo, W., & Lei, G. (2015). Effectiveness and safety of Glucosamine, chondroitin, the two in combination, or celecoxib in the treatment of osteoarthritis of the knee. Scientific Reports, 5: 16827. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4649492/
  12. Tiralongo, E., Wee, S., & Lea, R. (2016). Elderberry Supplementation Reduces Cold Duration and Symptoms in Air-Travellers: A Randomized, Double-Blind Placebo-Controlled Clinical Trial. Nutrients, 182. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4848651/
  13. Kogan, R., Schoenfeld-Tacher, R., Hellyer, P., & Rishniw, M. (2018) US Veterinarians’ Knowledge, Experience, and Perception Regarding the Use of Cannabidiol for Canine Medical Conditions. Frontiers in Veterinary Science, 5: 338. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6338022/
  14. Mayo Clinic. Consumer Health. CBD: Safe and Effective? Retrieved from https://www.mayoclinic.org/healthy-lifestyle/consumer-health/expert-answers/is-cbd-safe-and-effective/faq-20446700
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