Rick Simpson Oil (RSO) has gained massive popularity among those seeking alternative cannabis-based treatments. If you’re wondering how to make Rick Simpson Oil safely and effectively at home, this comprehensive guide walks you through the process, safety precautions, and best practices. Whether you’re new to RSO or want to refine your homemade technique, you’ll find valuable insights here. Additionally, understanding local laws, selecting the right strain, and testing potency are all key steps for success.

What Is Rick Simpson Oil (RSO)?
RSO is a highly concentrated cannabis oil named after Rick Simpson, a Canadian engineer who popularized its use for potential medicinal benefits. Unlike CBD oils, Rick Simpson Oil contains high levels of THC and is typically made using an alcohol extraction process. While some use it for pain relief, inflammation, or cancer-related symptoms, it’s crucial to note that scientific research on RSO is still limited.
Step-by-Step: How to Make Rick Simpson Oil at Home
Before you begin to make Rick Simpson Oil, gather all the necessary materials:
Materials Needed
- 1 oz of dried, high-THC cannabis
- 500 ml of food-grade isopropyl alcohol (or Everclear)
- Two glass bowls or a rice cooker
- Cheesecloth or coffee filter
- Stirring stick
- Funnel
- Syringes or dark glass containers for storage
- Rubber gloves and safety goggles
Extraction Process
- Crush the cannabis and place it in a bowl.
- Add alcohol until the cannabis is fully submerged.
- Stir for about 3 minutes to dissolve cannabinoids.
- Strain the mixture through a cheesecloth into another container.
- Repeat the rinse with more alcohol for a higher yield.
- Transfer the liquid to a rice cooker and heat it in a well-ventilated area (avoid open flames!).
- Once most of the alcohol has evaporated, you’ll be left with thick, dark oil.
- Use a syringe to collect and store your Rick Simpson Oil.
Safety Tips When Making RSO
- Always work in a well-ventilated area.
- Avoid any open flames—use electric appliances only.
- Wear protective gear like gloves and goggles.
- Do not inhale alcohol vapors.
- Keep pets and children away from the workspace.
- In case of skin contact with alcohol, rinse immediately with cold water.
- If you feel dizzy or nauseated, seek fresh air and medical help.
Additionally, monitor the temperature during the evaporation process. Overheating can degrade cannabinoids and reduce potency.
RSO vs Other Cannabis Oils
When comparing Rick Simpson Oil to other oils:
Oil Type | THC Content | Common Use | Extraction Solvent |
---|---|---|---|
RSO | High | Cancer, Pain Relief | Isopropyl alcohol |
CBD Oil | None or Low | Anxiety, Sleep | CO2 or MCT Oil |
FECO | High | Similar to RSO | Food-grade ethanol |
Make Rick Simpson Oil if you’re looking for a potent, full-spectrum extract for serious conditions. However, always consult a healthcare provider first.
Is It Legal to Make Rick Simpson Oil?
Legal status depends on your location:
- United States: Legal in some states with medical or recreational cannabis laws.
- Canada: Legal for personal use under the Cannabis Act.
- EU: Varies by country; some allow limited home production.
Before attempting to make RSO, check local laws to ensure compliance. In some regions, cannabis extraction is regulated or banned. Notably, legal status can vary significantly—research your jurisdiction in advance.
Best Cannabis Strains for RSO
When you make Rick Simpson Oil, strain selection matters. Choose high-THC strains such as:
- White Widow
- Girl Scout Cookies
- OG Kush
- Blue Dream
These strains offer a strong cannabinoid profile ideal for potent extraction. Always select quality, mold-free buds for best results.
Dosing Guidelines and Administration
Start small. Use a dose the size of half a grain of rice once a day for the first week. Gradually increase to three times a day over several weeks. Most importantly, listen to your body.
Suggested schedule:
- Week 1: 1 rice grain once per day
- Week 2: 1 rice grain twice per day
- Week 3: 1 rice grain three times per day
Store doses in pre-measured syringes to ensure consistency.

Potency Testing and Lab Analysis
Though optional, testing your RSO for potency ensures better dosing and quality. Use a home THC test kit or send a sample to a third-party cannabis testing lab. These options help verify THC content, contaminants, and overall purity.
Medicinal Uses: Anecdotal Benefits
Although not medically approved, RSO is anecdotally used for:
- Chronic pain
- Inflammation
- Insomnia
- Seizures
- Cancer-related symptoms
Many users claim relief from symptoms, but further scientific validation is needed. Never replace prescribed medication with RSO without medical guidance.
Potential Side Effects of Rick Simpson Oil
Using high-THC oil can result in:
- Drowsiness or sedation
- Dry mouth
- Dizziness
- Anxiety or paranoia in sensitive individuals
- Psychoactive effects
Start with a small dose and observe how your body reacts. As with any supplement, consult your healthcare provider.
Storing and Dosing RSO
- Store in dark, cool places in airtight containers.
- Use a syringe for accurate dosing.
- Shelf life: up to 1 year if properly stored.
Typical dosing starts with a rice-sized amount and increases gradually. Too much too fast can lead to unwanted psychoactive effects.
Can Pets Use RSO?
No, Rick Simpson Oil is not safe for pets due to its high THC content. If you’re seeking cannabis-based relief for animals, consult a vet and consider CBD alternatives.
Frequently Asked Questions (FAQ)
Can you make RSO with Everclear?
Yes, high-proof grain alcohol like Everclear is a safe substitute for isopropyl alcohol.
Is RSO legal in the USA?
Only in states with legalized medical or recreational cannabis.
How long does it take to make RSO?
About 3–5 hours from start to finish, including evaporation.
Is RSO the same as FECO?
They are similar, but FECO uses food-grade ethanol and may follow slightly different processing methods.
Can you decarboxylate cannabis before making RSO?
Yes, some users decarboxylate cannabis to enhance THC activation, although Rick Simpson’s original method does not require it.
How do I estimate THC potency in homemade RSO?
Use a THC calculator online or submit a lab test for accurate results.
Final Thoughts
If you’re looking to make Rick Simpson Oil at home, preparation, safety, and legal awareness are key. This potent cannabis extract continues to draw attention for its powerful effects and therapeutic potential. Follow this guide carefully, use the right materials, and consult professionals when needed. With the right approach, your homemade RSO can deliver both potency and purity.