best strain for rick simpson oil

Who is Rick Simpson and what is Rick Simpson Oil (RSO)?

Rick Simpson Oil, or RSO, is a cannabis concentrate used for many different medical benefits, including relieving cancer symptoms. It has a thick, syrupy consistency and can be applied as a topical or ingested in food or drinks.

In this article we’ll go over who Rick Simpson is and why he created this oil, how it’s used, how to make your own RSO at home, and whether or not you can smoke it.

What is RSO?

Rick Simpson. (Courtesy of Rick Simpson)

In 2003, Rick Simpson created a cannabis oil after three suspicious bumps on his arm turned out to be basal cell carcinoma, a form of skin cancer. Simpson had used cannabis to treat medical issues in the past, so he made a cannabis oil to treat his skin cancer topically, applying it to a bandage and covering the cancerous spots.

Within days, the cancerous growths disappeared. Although his physician refused to acknowledge cannabis as a treatment alternative, Simpson became a true believer in the medicinal powers of cannabis and spread the word of his cannabis oil, later called RSO after him.

Benefits of RSO

It’s important to note that there are currently no scientific studies that prove the effectiveness of RSO. However, it is mainly used to help treat skin cancer, and many people report that it helps relieve symptoms of other conditions.

Compared to other forms of cannabis, RSO is great because it’s easy to make, it’s discrete and odorless, and can be taken orally on its own, or mixed with any food.

How to use RSO

For medical patients, it is always recommended to consult your physician before starting any new treatment regimen. However, some physicians may be adverse to cannabis as a course of treatment. If you decide to use RSO, proceed with caution and at your own discretion.

Below is a recommended RSO regimen. When look for symptom relief for a condition or for medical benefits, for one patient, the goal is to gradually consume 60 grams of Rick Simpson Oil over the course of a 90-day period.

Week 1: Start with three doses every day

Each dose should be about the size of half a grain of rice and should be administered once every eight hours (morning, noon, and night); the first dose will be about ¼ drop of RSO.

Weeks 2 through 5: Double your dose every four days

The average person will take between three and five weeks to reach the full dosage of one gram of RSO per day.

Weeks 5 through 12: Take one gram of RSO daily until you’ve consumed the full 60 grams

Eventually, the patient will be taking about 8-9 rice-sized drops of RSO every eight hours.

Side effects

Mainly sleepiness, which is a natural part of the healing process. Increasing the dose gradually will help minimize the psychoactive effects and keep your tolerance to a functional level. Daytime sleepiness should fade within three to four weeks.

The taste of the RSO may be slightly bitter or unpleasant, so patients may prefer to ingest the oil by swallowing it directly or mixing it with food, such as bananas, to help mask the taste.

Continued regimen

After a 12-week regimen of RSO, you may want to continue the treatment but it should be at a significantly reduced rate. About one to two grams of RSO per month is enough for a regular maintenance dose.

Rick Simpson Oil should not be considered a cure-all for medical conditions, but many patients have experienced significant relief from their medical symptoms and conditions with the use of RSO.

Can you smoke or dab RSO?

As RSO is an oil, it can be smoked or dabbed, however, it depends on what solvent was used to make it—if a highly flammable solvent was used, do not attempt to smoke or dab RSO. Always check with your budtender on how the product was created and whether or not it is safe to dab or smoke.

If making RSO at home, you must be sure to burn off all the alcohol completely. As this can be tricky and the product will not have been tested for chemicals, we recommend not smoking or dabbing RSO you make at home.

Cooking with RSO

You can cook with RSO as well, just as you can with cannabutter or cannabis cooking oil. Consider the dish you’ll be making and keep in mind the texture and stickiness of RSO.

As far as baking, it will be easier to mix it in with something that has more liquid ingredients, like a cake or brownies, as opposed to cookies.

RSO is great for drizzling over any type of food, but the taste can be a little off-putting for some. You may want to mix it with a sauce or something else to mask the flavor.

How to make RSO

Making your own RSO at home is not difficult, and the process isn’t all that different from making cannabutter or other kinds of infused cannabis oil. Rick Simpson recommends using indica cannabis strains for best results, although you can use any strain, especially if a particular one works best for your medical condition.

Don’t want to cook? Buy RSO products here

Rick Simpson Oil recipe

This recipe will produce the full 60 grams of oil for a 90-day treatment regimen. If you’re looking for a smaller treatment course, you can easily divide the recipe into smaller amounts. For example, one ounce of cannabis will produce 3-4 grams of RSO.

  • 1 pound of dried cannabis material (indica strain)
  • 2 gallons of solvent—Rick recommends 99% isopropyl alcohol, but you can also use wood grain alcohol
  • 5-gallon bucket
  • Deep bowl
  • Wooden spoon for stirring
  • Cheesecloth
  • Rice cooker
  • Plastic catheter tip syringe (60mL)
  1. Place dry cannabis material into the 5-gallon bucket and pour in the solvent until the plant matter is covered.
  2. Stir and crush the plant material with your wooden spoon while adding the solvent to your mixture. Continue stirring the mixture for about three minutes while the THC dissolves into the solvent. This will dissolve about 80% of the THC into the solvent.
  3. Drain the solvent from the plant material into your bowl using the cheesecloth. Place the plant material back in the bucket and add more solvent. Continue stirring for another three minutes.
  4. Drain the solvent from your plant material into your bowl using the cheesecloth and discard the remaining plant material.
  5. Transfer your solvent to your rice cooker until it is about ¾ full and turn on your rice cooker.
    Note: While you don’t necessarily need a rice cooker, if you’ve never made RSO before, rice cookers are exceptionally useful in this instance for maintaining a slow, steady temperature. If your mixture heats above 300 °F (148 °C ), the cannabinoids will cook off and the RSO will be unusable. It is not recommended to use a Crockpot or slow cooker, as this may overheat your mixture.
  6. The rice cooker should maintain a steady temperature between 210-230 °F (100-110 °C ), which is the correct heat setting for decarboxylation to occur.
  7. As the rice cooker heats up, the solvent will slowly evaporate. Continue to add your mixture to the rice cooker gradually.
    Note: Make sure your rice cooker is in an open, well-ventilated area, and avoid all flames, stovetops, sparks, and cigarettes, as the solvent is highly combustible.
  8. Once the solvent has evaporated, siphon the oil into your syringe for easy dosing. The RSO will be thick, so if you have trouble dispensing it, run the syringe under hot water and the RSO mixture should dispense with ease.

The story of Rick Simpson

Rick Simpson stumbled upon cannabis fame purely by accident. Long before “Rick Simpson Oil” was coined as a term, and long before cannabis was considered remotely mainstream, Rick Simpson was an engineer working in a Canadian hospital in 1997.

Working in a hospital boiler room covering asbestos on pipes with a potent aerosol glue, toxic fumes built up in the poorly ventilated room and caused a temporary nervous system shock, making him fall off his ladder and hit his head. He was knocked unconscious and when he awoke, his colleagues took him to an emergency room.

He suffered dizzy spells and a ringing in his ears for years after the accident, but his prescribed medication had little effect, even making his symptoms worse. After seeing a documentary highlighting the positive benefits of cannabis, Simpson inquired about medical marijuana, but his doctor refused to consider it as a treatment. Simpson ended up sourcing cannabis on his own and saw a significant improvement in his tinnitus and other symptoms.

In 2003, after being diagnosed with skin cancer, Simpson did some research and heard about a study from the Journal of the National Cancer Institute in which THC was found to kill cancer cells in mice. He created the oil that would become RSO to treat his skin cancer topically. After four days, the cancerous growths had disappeared. His physician wouldn’t believe it, but Simpson was convinced of the medicinal powers of cannabis.

From then on out, he began cultivating his own cannabis and harvesting plants to create his own specialized form of cannabis concentrate, now known as Rick Simpson Oil, or RSO. It became his mission and goal to distribute cannabis oil to those who needed it, free of charge. He helped treat more than 5,000 patients with RSO, but his journey was not without its setbacks and struggles.

Simpson’s own doctor refused to acknowledge the benefits, and Simpson faced arrest and persecution in his native Canada. His home was raided on multiple occasions and he had over 2,600 plants cut down and confiscated by the Royal Canadian Mounted Police, but Simpson persevered and continued to distribute cannabis oil. To this day, he continues to spread the word of his findings.

Have you ever used RSO? How has it impacted your life? Let us know in the comments!

This post was originally published on May 12, 2017. It was most recently updated on July 7, 2020.

Rick Simpson Oil (RSO) is a concentrated form of cannabis oil known to have medical benefits. Learn more about Rick Simpson and how to make RSO today.

The 8 Best Strains For Making Rick Simpson Oil

Rick Simpson Oil is cannabis oil made with techniques that are easy to replicate at home. According to Rick Simpson, the best strains for making Rick Simpson Oil or RSO are “very potent and sedative medicinal Indica varieties.” Keeping it indica-dominant and potent, we narrowed it down to the 8 best strains for making Rick Simpson oil.

Platinum OG

Platinum OG was number one out of Michigan on our 2016 strongest strains on earth list. The medical sample tested at 27 percent THC. Platinum is one of the first strains to test at over 20 percent THC regularly. Platinum OG is an indica-dominant strain associated with heavy physical sedation which makes it one of the best strains for making Rick Simpson Oil.

Motor Breath

Motor Breath is an indica strain that has been rapidly accumulating awards over the last couple of years. In fact, it recently won number one indica at the 2017 SoCal Cannabis Cup. Motor Breath is also a popular potent strain in Michigan because it was given 2nd place indica at the midwest cannabis cup in 2017. It also turned up twice on our strongest strains list of 2017 with THC percentages at 29 percent and 25 percent.

Purple Punch

Symbiotic Genetics bred the popular indica Purple Punch by crossing Larry OG with Granddaddy Purple. The strain was brought into popularity by the expert cultivators at The Village and Jungle Boys. The buds are typically caked in trichomes with hues of purple and the smell of cream, berries and grapes. Purple Punch made it into the top 5 indica flowers and top 10 concentrates at the 2017 NorCal cup.

Kosher Kush

Kosher Kush is an indica strain by Reserva Privada which is a part of DNA Genetics. It has a pungent, floral and earthy smell. Kosher Kosh nugs are short, stout, dense and frosty. The strain won the High Times cannabis cup best indica 2010, best strain 2011 as well as best indica in the 2012 and 2015 medical cups. The heavily awarded strain is still in-demand in 2018.

L.A. Chocolat

Parents are both cannabis cup award-winning strains bred by DNA Genetics. L.A. Chocolat is an indica-dominant hybrid with a prominent body high. This hybrid has the mood-lifting qualities of a sativa with the sedation of a heavy indica strain. There is heavy trichome production on specific pheno’s of this strain.

Godfather OG

Godfather OG won 1st place indica at the 2013 cannabis cup in LA. In 2017, God Father OG broke the previous cannabis cup record of 32.13 percent THC, testing at 34.04 percent. If you’re looking for a strain associated with potency and sedative effects, look no further. Godfather OG will have muscles relaxed and eyelids low after a few puffs.

Blue Cheese

Blue Cheese is a cross between the popular U.K. Cheese strain and DJ Short’s Blueberry. The effects are sedative, helping patients sleep with ease. This indica strain is ideal for night time use and it regularly tests over 20 percent THC. The scent is somewhere between aging cheese and sweet blueberries.

Strawberry Banana

Crockett from Crockett Family Farms and Guru of Serious Seeds created the popular, multiple award-winning strain Strawberry Banana. They genetically crossed Crockett’s Banana Kush with Guru’s Strawberry phenotype of the Bubble Gum strain. The result is one of the most pleasant smelling sativa-dominant hybrids we’ve ever come across.

Strawberry Banana has made the High Times’ strongest strains on earth list three years in a row with THC levels reaching as high as 31 percent. The strain won multiple first-place awards in the concentrate category of the 2016 SoCal Cannabis Cup.

This list consists of some of the strongest Indica strains we’ve come across here at High Times. They are the best strains for making Rick Simpson Oil based on his recommendation, their indica lineage and the fact that they all regularly test at over 20 percent THC. If you don’t have access to any of the listed strains just look for anything in your area with high THC levels and sedative or indica effects.


not sure if anyone will read this, but it must be said. Rick Simpson did not invent cannabis oil and to put his name on it doesn’t mean anything to me at all. We, all my hippi friends and myself, were using ethanol to extract the goodies out of weed back in 1970, yeah huh, you guessed it, it wasn’t called RSO (Rick Simpson Oil) back then. Okay, that’s out of the way…
Indeed, medicinally many Indicas are perfectly suited for extraction via ethanol, etc. However, cannabis is not just medicinal in nature, well, not for all of us. Myself, recreational and medicinal use are one in the same, but taking specific strains orally (cannacaps) is where I began to experience the most medical benefits. I purchase alcohol extracts and I make my own at home, but I use very specific strains for specific reasons. Unfortunately, there is no way to know if the same benefits are experienced by all unless you try it for yourself. I can tell you this much, limiting myself to a selection of indica or indica dominant hybrids will not happen. I did that at first and wasn’t getting the relief I needed from symptoms such as, fatigue, chronic pain, stress, anxiety, ADD/ADHD, etc… Ahhh, this is where a potent sativa or sativa such as Durban Poison, ALASKAN THUNDER FUCK (ATF), Sour Diesel, Lemon Sour Diesel, or a sativa dominant hybrid such as, Dirty Girl or ChemDawg… Indeed, it really has to do with what your symptoms are and why, and YOU.
I believe in the spirit of exploration, especially with cannabis. Do not be afraid to try new methods of consumption and new strains…
In closing, this is an exciting time for cannabis enthusiasts, but in order to fully unlock the mysteries of this legendary plant our government must get out of the way and legalize ASAP. The newest game charger on the block is THCP and its counterpart CBP… Prior to this, it was THCV, which has been dubbed the “Sports Car why not do your part by experimenting on your own and sharing the results?
The Indigenous Alien

The best strains for making Rick Simpson Oil are high in THC with mostly indica characteristics.