Hemp Oil: Benefits, Usage, & Side Effects

by John Staughton (BASc, BFA) last updated -

Hemp oil is the nutrient-dense product generated by pressing hemp seeds. This oil is derived from the hemp plant and has many proven benefits for physical and mental wellbeing.

What is Hemp Oil?

Hemp oil is a concentrated oil derived from the seeds of the hemp varietal of the Cannabis sativa plant. The many benefits of using this seed oil come from the fatty acids, minerals, and cannabinoids that the oil contains, including CBD (cannabidiol). Many people have heard of Cannabis sativa because marijuana is a subtype of this plant, which is known for its psychoactive effects. These psychoactive effects are due to the high presence of tetrahydrocannabinol (THC) in this plant. Hemp oil from hemp seed plants, on the other hand, is specifically bred to have low levels of THC. [1]

To be considered a hemp plant, there cannot be more than a 0.3% concentration of THC in the plant’s extracts. Therefore, despite a great deal of public concern and confusion around this issue, reputable hemp oil is derived from a completely different plant than marijuana, a plant that is illegal in many parts of the world.

A close-up image of hemp raw seeds and oil on a wooden table

Hemp oil is a concentrated oil derived from the seeds of the hemp varietal of the Cannabis sativa plant. Photo Credit: Shutterstock

That being said, hemp oil does contain small amounts of cannabidiol (CBD), as shown in this article from the Journal of Nutraceuticals, Functional and Medical Foods. This cannabinoid has a number of relaxing and therapeutic effects on the body, along with numerous other non-psychoactive cannabinoids, such as cannabigerol (CBG) and cannabinol (CBN). [2]

The hemp plant has been widely cultivated for thousands of years, and all parts of the plant can be used for a variety of other purposes. Hemp can be made into sustainable rope, twine, and clothes, as well as shoes, food, paper, and biofuel. Given the recent surge of popularity surrounding the therapeutic effects of CBD oil, accelerated by the legalization of hemp products in the United States, a great deal of attention has turned to this unassuming and powerful substance—hemp oil.

Hemp Oil for Pain

The reason that cannabinoids are so beneficial and effective on the human body is that our nervous system is lined with cannabinoid receptors. This may sound strange, but our body also naturally produces cannabinoids. It is so significant, in fact, that experts have recently deemed it an entirely new system—the endocannabinoid system (EC system). Interestingly, this system works in the opposite direction of our normal nervous system; a cannabinoid is made when the post-synaptic neuron is triggered, which then produces a cannabinoid that is released from the cell, where it travels back to the presynaptic neuron, where the cannabinoid receptor is located. [3]

There are different types of cannabinoids and different types of receptors. While marijuana would cause a flood of THC in the endocannabinoid system, resulting in the feeling of being “high”, the use of this oil interacts with receptors by blocking those responsible for sending our pain signals. In other words, they lead to pain-relieving and anti-inflammatory effects in the body. [4]

Hemp Oil for Anxiety

As explained in the above section, hemp oil, with its more than 30 different cannabinoids, can have many different effects on the body, based on the type of receptors being triggered on the presynaptic neurons. When it comes to the management of anxiety, there have been many positive studies regarding the effects of hemp oil on social anxiety, generalized anxiety disorder, post-traumatic stress disorder (PTSD), and sleep disorders. The studies have varied in design and scope but point towards a definite benefit through the use of hemp oil that is high in certain cannabinoids. [5] [6]

Hemp Oil for Skin

One of the major benefits of hemp oil is its ideal combination of omega-3 and omega-6 fatty acids, which can have a number of positive effects both internally and topically. It is specifically a great source of GLA, gamma-linolenic, a type of omega-6 fatty acid that has been widely studied in relation to the skin. For this reason, many studies have found that the use of this oil is able to treat acne, prevent inflammation and itchiness, speed the healing process, reduce the appearance of scars, and help to treat psoriasis and eczema. There are also a number of antibacterial, anti-fungal, and antiviral properties conferred by the use of hemp oil, which bolsters the immune defenses on your body’s largest organ. [7]

Other Benefits

Aside from the analgesic, anti-inflammatory, moisturizing, anti-anxiety, and antidepressant effects of this wonderfully versatile oil, it has also been found to help with PMS symptoms, menopause, arthritis, heart health, the immune system, and detoxifying the body.

  • PMS / Menopause: Oil from hemp seeds can soothe menstrual cramps and mood swings that are often associated with premenstrual syndrome by increasing the body’s production of prostaglandin E1 (PGE1). [8]
  • Arthritis: Numerous studies have found that hemp oil can improve cartilage development and joint function, in addition to reducing the inflammation and discomfort of arthritis symptoms when topically applied and consumed orally. [9]
  • Immune System: The anti-inflammatory properties of this oil can reduce the strain and work of the immune system, which is responsible for inflammatory responses, thus preserving the resources and strength of our body’s defenses. [10]
  • Heart Health: In terms of healthy fats, hemp oil is rich in omega-3 and omega-6 fats, a balance of which is essential for coronary health, low blood pressure, and better overall cardiovascular health. [11]


The number of applications for hemp oil seems to be increasing every day, including tinctures, capsules, and concentrates, as well as topical creams, sprays, and vapes. This is in addition to all the pure oils that you can buy, hemp oil-infused sodas, cakes, candies, and brownies. As more attention is put on this versatile oil, the market of products continues to expand. Different products will have different concentrations of cannabinoids, and some of the products are rather expensive.

As opposed to the effects of THC, the effects of hemp oil are not psychoactive, so there isn’t as much danger of using too much. In most cases of using this oil, you will get a deeper night’s sleep, additional relief, or an even better mood. That being said, it is always most advisable to follow the product instructions and consult a doctor before using if you have any chronic conditions or prescriptions.

Side Effects

Clearly, there are many positive effects of hemp oil, but there is a risk of certain side effects, depending on how you are using the oil. If you are adding this oil to your food, remember that it is high in omega-3 and omega-6 fatty acids; these are “good fats”, but they should still be consumed in moderation. Some users also report trouble with their digestive system, as hemp oil can cause soft stool, increasing the likelihood of diarrhea and stomach cramps.

As noted above, it is best to speak with your doctor about any pre-existing conditions before adding this oil to your health regimen.

While you are using any CBD or hemp derived products, it is important to check your state’s laws and guidelines for the same. Hemp-derived CBD products are illegal in the US on a federal level, but still legal in many states. If you are travelling, then make sure you comply with that city/state’s laws regarding the consumption and use of CBD. Remember that most CBD products are not FDA-approved and therefore may be sold illegally or with wrong labeling.

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About the Author

John Staughton is a traveling writer, editor, publisher and photographer with English and Integrative Biology degrees from the University of Illinois in Champaign-Urbana (USA). He co-founded the literary journal, Sheriff Nottingham, and now serves as the Content Director for Stain’d Arts, a non-profit based in Denver, Colorado. On a perpetual journey towards the idea of home, he uses words to educate, inspire, uplift and evolve.

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