What Is Rick Simpson Oil (RSO)?

If you have browsed cannabis menus in New Jersey, you may have come across Rick Simpson Oil, often referred to as RSO. Known for its potency and versatility, RSO has a unique history and stands apart from other cannabis concentrates.

This guide explains what RSO is, how it is made, common uses, and what to know before trying it.

What Is Rick Simpson Oil?

Rick Simpson Oil, commonly called RSO, is a highly concentrated cannabis extract made using the whole cannabis plant. It is known for its thick consistency, dark color, and strong aroma, which reflect its full extract nature.

Unlike many cannabis oils that are refined for flavor or inhalation, RSO is minimally processed. This allows it to retain a broad range of naturally occurring cannabinoids from the plant, including THC, along with other plant compounds. Because of this, RSO is often described as a full extract oil rather than a highly refined concentrate.

RSO is typically packaged in a syringe to allow for precise, small-amount use. It is intended for oral or topical use.

The Origin of RSO

RSO is named after Rick Simpson, a Canadian cannabis advocate who developed the oil in the early 2000s. His goal was to create a simple, concentrated cannabis extract using the whole plant. Simpson has publicly stated that he began making and using the oil after being diagnosed with skin cancer. He attributed improvements in his condition to the oil and went on to share his method and story widely through interviews, documentaries, and online forums.

While RSO is often discussed online in medical contexts, it is important to note that dispensary-sold RSO in New Jersey is regulated, lab tested, and intended for adult-use consumers 21+.

How Is RSO Made?

RSO is created by extracting cannabinoids from cannabis using a solvent. Once the solvent is removed, a dense oil remains. The minimal refinement process gives RSO its thick texture and robust flavor.

How Do People Commonly Use RSO?

Rick Simpson Oil is a highly concentrated cannabis extract that is intended for oral or topical use. Because of its high potency, RSO is typically recommended to be used in very small amounts. RSO does not require any heat or activation before use. 

Oral Use

Oral use is one of the most common ways to consume RSO. A small amount, often described as rice-sized, can be swallowed or placed under the tongue. Due to its thick and sticky consistency, some people mix RSO into food such as peanut butter or into capsules to make it easier to consume.

When taken orally, effects may take longer to appear compared to inhaled cannabis. It is recommended to wait several hours before increasing the dose amount.

Topical Use

RSO can also be applied directly to the skin. Some users also blend into lotions or balms for external use. 

Dosing Approach

Because RSO is highly potent, most people follow a low and slow approach. Starting with a very small amount and gradually adjusting over time helps reduce the chance of overconsumption.

How Is RSO Different From Other Cannabis Oils?

RSO is considered a full extract oil, meaning it is minimally refined and retains a wide range of naturally occurring cannabinoids from the cannabis plant. This gives its distinct thick texture, dark color, and strong, earthy flavor. 

Other cannabis oils are often more refined and purpose-specific. For example, tinctures are alcohol based and designed for easier dosing, while vape oils are formulated specifically for inhalation. Distillate is processed to isolate specific cannabinoids and usually has a lighter color and milder taste.

RSO is intended for oral or topical use. It is also typically higher in THC than many other cannabis oils, which is why it is used in very small amounts. For this reason, RSO is best suited for experienced consumers or those interested in full extract products.

Things to Know Before Trying RSO

Before purchasing or using RSO, keep these tips in mind:

  • Start small, as RSO is very potent!
  • Be patient, since effects can take longer to appear when consuming products orally
  • Store properly in a cool, dark place away from children and pets
  • Ask questions, as Bud City staff members can help explain dosing and options


*Disclaimer: While Rick Simpson has shared his personal beliefs about cannabis and cancer, it is important to understand that his claims are anecdotal. They are based on personal experience and have not been proven through large scale clinical research.

RSO is not approved as a cancer treatment, and cannabis products sold in New Jersey dispensaries are not intended to diagnose, treat, cure, or prevent any disease. Any health related use of cannabis should be discussed with a qualified medical professional.


Finding RSO at Bud City

At Bud City in Newton, NJ, we carry a curated selection of cannabis products for adults 21+, including potent concentrates like RSO. RSO is not for everyone, but for some adult consumers, it can be a versatile addition to their cannabis routine. 

If you are curious about Rick Simpson Oil or wondering whether it fits your preferences, our team is always happy to help you explore your options and make informed choices.

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