What Is Rick Simpson Oil (RSO) ? Benefits, Effects and Research

Rick Simpson Oil (RSO) is a cannabis-derived oil that was created by Rick Simpson. This Canadian Cannabis activist is stronger in the healing properties of Marijuana. This oil has high concentrations of THC, which, when concentrated, have shown signs of being able to treat a wide range of ailments.


RSO is developed using Indica-dominant strains of Marijuana such as cannabis Indica which is known to contain a high level of THC. RSO sedative effects come in handy in curing the body of several ailments. This potent cannabis oil has gained massive popularity and is credited in curing cancer.

Best Article About Marijuana Fact On 02- 2024

Rick Simpson Origin

This oil was initially created in 2003 by Rick Simpson after being diagnosed with a form of skin cancer known as basal cell carcinoma. After the diagnosis, Simpson decided to turn to cannabis since he had successfully used it in the past to treat dizziness and a ringing in his ear that had been caused by an accident in the workplace.

Rick Simpson Origin

During that time, he also came across an interesting study in the Journal of the National Cancer Institute which revealed that THC had been used successfully to kill cancer cells in mice. This revelation strengthened his faith, and he decided to give it a try.

He made his own extract, applied it on his bumps and bandaged it up. His faith paid off as the bumps miraculously disappeared after just four days.

After the astounding success of this miracle oil, Simpson could not contain the news to himself. He became a staunch advocate for this method of healing and nothing could deter him. Simpson faced countless police raids, prosecution and ridicule from people who didn’t believe in the oil’s acclaimed healing properties. In all these, he remained unbowed and continued to promote his magic potion. Besides, he sought no monetary value from the oil as he distributed it for free. He also encouraged cancer patients to make their own extracts for personal use.

Rick Simpson Oil uses

RSO is commonly famed for its effectiveness as an alternative cure for cancer. It is also known to combat other medical conditions such as:

  • Chronic pain
  • Insomnia
  • Lethargy and lack of motivation
  • Hyperglycaemia
  • Eating disorders
  • Asthma
  • Depression
  • Multiple Sclerosis
  • Anxiety,
  • Alzheimer’s, and
  • Parkinson’s disease

RSO can treat the condition mentioned above due to its high level of THC. It is as potent as the Marijuana itself and hence its success in combating a myriad of health issues.

RSO Taste

This oil has a unique taste which has been described as bitter and chlorophyll like. The developer of this product does not advocate for its smoking. He instructs his patient to either eat it by placing it on the lower gum line and allowing it to dissolve gradually, or applying the oil directly to the skin.

As for the dosage it advisable to start with small portions (around the size of a half grain of rice), three times a day, typically, every 8 hours. Beginners should start by ingesting a quarter of a drop and work their way up depending on the effects and the needs.


  • A natural alternative for treating cancer and other medical conditions such as mood and sleep disorders, arthritis, pain, multiple sclerosis, among others.
  • Induces relaxation calming the mind, therefore, combating anxiety
  • Improves appetite
  • Minimizes skin inflammation


  • Can cause drowsiness due to high levels of THC.
  • Anxiety
  • Hallucinations
  • Irritability
  • Dryness of mouth and eyes
  • Impaired memory
  • Bloating
  • Bloodshot eyes
  • Unsteadiness

These side effects are short-lived will subside as soon as the THC exists the body. Your body will also learn how to tolerate the oil after a while.

RSO recipe

Weed is the main ingredient in this simple recipe. In most states you will need a medical marijuana card that allows you to obtain and grow the amount of Marijuana required to treat your condition.

Ensure that your lab is tested and contains at least 15% THC and is free from pesticides. You should also seek the help of an experienced medical doctor, one who knows about cannabis-based medicines.

Some of the recommended strains for making RSO recipe are

Granddaddy Purple. This is an Indica dominant strain and is known for its high sedating properties. Its THC levels range between 17-27 per cent with a CBD rate of 7%

Purple Kush. Another Indica strain with a decent THC content of 22%. This strain has featured regularly in the list of 1o most potent strains in the world. It makes the user euphoric and eliminates pain while giving a sedation effect.

Holy Ghost. This is a hybrid strain with 50% Sativa and 50% Indica. It has a high THC of 28%

ACDC strain. This is a relatively low THC hybrid of 1-6% per cent. However, its high CBD content of 20% induces concentration and calms restlessness.

Platinum OG. This is an Indica dominant strain with a commendable THC content of 27% per cent. It is strong, which presents very heavy sedation.

Other capable strains for preparing RSO include;

  • Afghan Kush also known as Afghan OG
  • Motor Breath
  • Northern Lights
  • Strawberry cough
  • Kosher Kush
  • Blue Cheese, and
  • L A Chocolat

Most of these strains are Indica dominant and contains a relatively high amount of THC. These two characteristics are crucial while choosing cannabis for the preparation of RSO.

How to make Rick Simpson Oil

How to make Rick Simpson Oil

Rick Simpson’s website offers step by step guide on how to prepare this potent concoction. We recommend you to visit his website for more in-depth instructions but to get an idea on what it takes to make RSO, here are the basic guidelines.

  1. Place dry cannabis in a deep container. This is to prevent the content from splashing out during the washing process. You will then pour in a solvent such as 99% isopropyl alcohol to soften the buds. Crush and stir the bud material using a wooden rod like a potato masher.
  2. After crushing the bud, add more solvent until the bud material is completely immersed in the solvent.
  3. Drain the solvent oil mix into a separate container to separate the bud debris from the solvent. The waste will be washed for the second time using the same procedure.

According to Simpson, the first wash dissolves 75-80% of the available beneficial resin; the second wash removes most of the useful substance that is left. Trying to perform a third wash will yield very little oil of insignificance medicinal benefits. Oil from the third wash could be used to treat minor conditions such as skin problems

  1. Get some clean containers such as water bottles and insert funnels to the opening. Put large coffee filters in the funnels and pour the mixture from the first and second washes. The filters will ensure that no debris finds its way to your solvent mix.
  2. Once the filtration process is done, it is now time to boil off the solvent. To evaporate the solvent, you can use a rice cooker and heat the oil solvent mix to a heat setting of 210-230 degrees Fahrenheit.
  3. Wait for the solvent to evaporate completely, which might take a while. You will be left with a dark concentrate. as you draw up the substance into a syringe, you will notice that as the oil cools, it will have a thick greasy consistency.

RSO extraction is a relatively simple process, but it can still be complicated for some people. As a result, many fraudulent online vendors have come out to exploit people by claiming to be RSO suppliers. Rickson Simpson has distanced himself from such claims and insists that the only way to guarantee genuine oil is to make it yourself.

Notably, making RSO is potentially hazardous. Ensure that you are in a well-ventilated area and away from any flammable substances that could make the fumes to cause a fire.

How to use RSO oil

As stated earlier, smoking of this product is not advised. The three common ways to use RSO are;

  • Rub it onto the skin as a topical ointment
  • Place the drops under the tongue and let them dissolve gradually. This is the sublingual method.
  • Take orally as capsules

While all the three methods are useful in the application of RSO, the sublingual method has a higher absorption rate, and its effects will be experienced more rapidly. The oral capsule takes longer to be absorbed, but its effects are long-lasting. In a sense, the route of administering this oil will largely depend on your unique needs.

Rick Simpson Oil is very intoxicating owing to its high concentration of THC

How does RSO Fight cancer cells

So far, we have seen that the standard cannabis strains that are used to prepare this recipe contain significant levels of the two most essential cannabinoids: THC and CBD. These two elements include the following cancer-fighting properties.

Antiproliferative– prevents the reproduction of cancer cells

Antiangiogenic. Prevents the cancer tumour from growing its blood vessels and therefore causing it to shrink.

Antimetastatic. prevents the spread of cancer to other cells

Apoptotic. Suffocates cancer cells 

THC levels take pre-eminence in determining the most viable strain in preparation of RSO.

Where to buy Rick Simpson Oil

Several online vendors claim to sell RSO. The disadvantage of buying from these websites is that you are not guaranteed of the real deal. The oil may not be used using high-grade cannabis and the solvent used may not be of good quality. It is highly recommended that you make your own. By following the instructions outlined in this article on Simpson’s website, you can be sure to make RSO that will serve you effectively.

RSO for cancer treatment. What does the medical community say?

RSO for cancer treatment

While there is some scientific proof to support the use of cannabis in the treatment of cancer, more research is needed before the medics can make firm claims. According to researchers, there is insufficient evidence to support the claim that Rick Simpson Oil cures cancer directly.

Medical news today in one of their newsletters warns cancer patients from stopping their medication and relying solely on RSO. The publication advised that the oil can be used to deal with unpleasant side effects of chemotherapy and anyone looking for alternative cancer treatments should discuss with their doctor to explore the options available.

This report further expounds on a recent study that shows that prolonged use of Cannabis and THC may pose some long-term effects, especially among adolescents. Teenagers who are exposed to high risks of THC have a high risk of impaired memory, seeing that their brain is still developing.

There is also the danger in preparation, especially in areas where cannabis is illegal. Furthermore, carelessly handled solvents used to extract the substance can pose significant health risks to the individual preparing the concoction.

In essence, more research is still underway before making a conclusive affirmation that Rick Simpson Oil can directly cure cancer. Although earlier conducted research had raised some hope in the use of cannabis to treat cancer, more factors still need to be put into consideration.

Make sure to consult help before embarking on this alternative method of treating cancer.

Read Next: Ilovegrowingmarijuana (ILGM) Marijuana Seed Bank Review

In conclusion

This potent cannabis oil derived using an ethanol extraction technique, and high-quality Indica strain has gained much popularity due to its claims to cure cancer. The originator of this concoction Rick Simpson, from where the oil gets its oil from has faced much criticism both from the medical and legal reams. Nevertheless, there many who support him and claims that the oil has helped heal their cancers.

Simpson advocates for patients to make their own oil as this guarantee’s safety and genuineness. However, this preparation is a risky affair, and extreme measures should be taken to avoid hazardous outcomes.

If you are planning to use RSO as an alternative treatment for cancerous growth, ensure you talk to a qualified physician who will explain the cons and pros of this mode of treatment. Acquire only properly prepared oil, and if you want your DIY, follow the instructions to the letter and ensure you use high-quality marijuana strains and solvent.

5/5 - (2 votes)

Bowden draws from over a decade of home growing experience as well as consulting for small-scale and hobbyist-level growers. He has written hundreds of articles, thought pieces, and tutorials about growing cannabis at home

Leave a Comment