How to Use CBD RSO Syringes

RSO oil is a concentrated, highly purified full spectrum raw cannabis extract developed by Rick Simpson. This oil is designed for people who want to try a more potent CBD dose to address various wellness issues. The proprietary formula has all the compounds in the hemp plant, including over 100 cannabinoids, terpenes, flavonoids, vitamins, chlorophyll and more. It is naturally high in THC, so CBD brands develop products with RSO oil that also meet legal limits of no more than .3% THC per serving by adding other healthy ingredients, like coconut oil, or blending the RSO oil with different types of decarboxylated CBD oil. Each RSO oil is extracted from a particular hemp strain and is thick and sticky.

TL;DR (Too Long; Didn’t Read):
RSO oil is highly purified full spectrum oil extracted from the cannabis plant. The two common RSO extraction methods are solvent extraction and supercritical CO2 extraction. The extract is filtered to remove unwanted compounds. In its original form, RSO oil is pure CBD and THC. When sold as a CBD product, the RSO oil product is formulated to ensure the THC does not exceed .3% THC per dosage. Many RSO products are sold in an RSO syringe with measurement marks or plunger ridges to make dosing easier. The best way to use RSO oil is to measure it in a spoon for consumption or apply a dose directly under the tongue for rapid absorption.
Table of Contents
How is RSO Oil Made?
One RSO extraction method used to produce highly concentrated RSO oil is solvent extraction. For example, hemp flowers are soaked in ethanol or isopropyl alcohol. The CBD extract is filtered to remove impurities, and the solvent is evaporated by heating the extract, leaving concentrated RSO oil. The heating process burns off delicate compounds and activates cannabinoids through decarboxylation. Unless purified with additional steps, RSO oil may have the consistency of oily tar.
Another extraction method used is supercritical CO2 extraction. This method uses pressurized carbon dioxide to separate the cannabinoids, terpenes, and other compounds from hemp plant parts, including the stalks. It uses very high temperature and pressure to turn carbon dioxide into a supercritical liquid with liquid and gas properties. The supercritical liquid becomes the solvent for extracting CO2, and the extract is filtered to remove unwanted compounds.
The RSO oil product may be mixed with another oil, like coconut oil, to ensure accurate CBD concentration. Some companies, like Myriam’s Hope Hemp, take additional steps to clarify the RSO oil. Instead of a dark, tar color, the RSO oil is golden but still a FECO product. FECO is the acronym for the concentrated “full extract cannabis oil.”
Legal CBD products, including full spectrum RSO oil, contain no more than .3% CBD per dose. The original RSO oil has more than that, so buying RSO oil products from brands that follow the law is important.
How to Open an RSO Syringe?

RSO oil is placed in the glass barrel of a plunger syringe with a nozzle applicator. The syringe makes it easy to dose the ultra-potent RSO oil. You quickly learn how to open an RSO syringe.
- Hold the syringe in an upright position.
- Pull or twist the cap off the syringe and save.
- Place the syringe’s open end where oil is to be injected.
- Slowly press the plunger to dispense the oil.
- Place the cap back on the syringe to keep the RSO oil fresh.
- Press the plunger very slowly to dispense only a rice grain-sized oil droplet.
The syringe and syringe cap are not just for dispensing the oil, but also for protecting it from exposure to environmental pollutants, thereby keeping the oil fresh. The syringe is designed to make delivering a precise amount of RSO oil easy.
How to Use RSO Syringes?
You can choose how to take RSO oil when using a syringe to dispense the oil.
✅ Place CBD oil drops on a spoon and place the oil under the tongue. People have indicated this is the best way to use RSO oil because a spoon makes it easier to ensure the correct amount is dispensed from the syringe.
✅ Place RSO oil drops under the tongue and hold for a minute or more to allow oil diffusion through the mucous membranes in the mouth and directly into the bloodstream.
✅ You can add RSO oil to food or drinks.
✅ You can also place RSO oil directly on the skin.
RSO Syringe Doses
The RSO syringes may have tick marks on the syringe barrel representing milliliter measurements, making it much easier to dose the small amounts required. Some products have plungers with protruding, small ridges on the barrel’s surface. Each ridge is a designated amount of RSO oil.
If you are a first-time user of RSO oil, start with low doses. A safe way to dose is to follow the recommended dosages on the product label.
You can follow Rick Simpson’s suggested routine for first-time users. These instructions are for pure RSO oil, but all CBD products with RSO oil are high-potency*.
Days 1-3
Take one dose approximately half the size of a rice grain every four hours for three days. One suggestion is taking a dose in the morning, afternoon, and one hour before bed. Half the size of a rice grain is approximately one-fourth of a drop. To get started, take the first dose a few hours before bedtime and the same dosage amount the next morning. Then, take another dose every four hours. The four hours give the RSO oil time to work.
Day 4
Double the RSO dosage on the fourth day. This would be a dose that is the size of a rice grain.
Day 5
Double the dose every four days until you are taking one gram of RSO oil per day. You can split the dosage up as desired.
Once you develop a tolerance, you can divide the one-gram dosage to best meet your needs. For example, you can take five doses daily, with the last dose before bedtime. It takes some experimentation to determine which dosage amount and schedule work best. Since RSO oil is concentrated, it generally has more THC than other types of CBD oils.
RSO oil is available in different potencies, including 50 mg-240 mg of CBD per serving. CBD RSO oil products have no fillers or additives, contain .3% THC and may have additional amounts of cannabinoids like CBDA.
FAQs
Can You Use RSO Syringes for Smoking?
You cannot use the RSO syringe for smoking. Also, the RSO oil is not intended for smoking. It has a very thick consistency and high cannabinoid concentration. Trying to inhale the oil would likely be harmful to your lungs.
What Should You Do if your RSO Syringe Stops Working?
The RSO oil is very thick and can be sticky. Sometimes, after replacing the cap after a dose, the sticky oil may cause the cap to stick. All you need to do is warm the cap area.
The same is true if the RSO syringe is stuck. You will need to apply heat, but not too much. High heat can harm the RSO oil. Instead, run the syringe under warm water for approximately half a minute to make the oil viscous enough to dispense. You could also hold the syringe in a warm hand or press against your body for about half to one minute.
How Should the RSO Syringe be Stored?
First, clean the dispensing nozzle to store RSO oil to remove any sticky residue. Make sure the cap is on correctly. Store the RSO syringe in its original packaging like a cabinet in a cool, dark place. It should not be stored in direct sunlight or in a hot location.

Know What You Are Buying
High-potency RSO oil in CBD products delivers the bounty of the hemp plant for wellness. Reviewing the Certificate of Analysis (COA) for any CBD product you are interested in is important. You want to ensure the product does not contain more than the legal amount of THC or hazardous compounds like solvents, pesticides, and heavy metals. The COA also includes data on the various cannabinoids in the oil, especially CBD and THC. Also, follow the recommended dosage amounts until you know the effects. RSO oil is potent, but that is why it is growing in popularity. By selecting high-quality products and using them responsibly, you can experience the full therapeutic potential of CBD RSO while minimizing risks.
* This information is for educational purposes only and is not intended as medical advice. Consult with a healthcare professional before using RSO oil, especially if you have any medical conditions, are pregnant or nursing, or are taking medications.
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