FECO vs RSO: Understanding the Key Differences

King Harvest
4 min readOct 25, 2023

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In the world of alternative medicine, cannabis-based products have gained significant popularity for their potential therapeutic benefits. Two such products, RSO (Rick Simpson Oil) and FECO (Full Extract Cannabis Oil), often find themselves in the spotlight due to their purported healing properties.

While both RSO and FECO share some similarities, they are not synonymous, and understanding their differences is crucial for individuals seeking alternative treatments. This blog post will explore the distinctions between FECO and RSO and help you decide which one might suit your needs.

What is FECO?

FECO, which stands for Full Extract Cannabis Oil, is a concentrated cannabis oil known for its comprehensive extraction process. FECO aims to retain as many plant compounds as possible, offering a holistic approach to cannabis therapy. This full-spectrum extraction includes not only cannabinoids like THC and CBD but also terpenes, flavonoids, and other valuable phytochemicals found in the cannabis plant.

FECO is typically produced using solvents like ethanol or CO2, which are used to dissolve cannabinoids and other beneficial compounds. The resulting solution is filtered to remove impurities, leaving a concentrated cannabis oil rich in cannabinoids and other therapeutic components.

What is RSO?

RSO, or Rick Simpson Oil, is another concentrated cannabis oil that has gained recognition for its potential health benefits. RSO was popularized by Rick Simpson, a Canadian activist who claimed that the oil cured his skin cancer. RSO is often associated with high THC content, making it a popular choice for patients seeking relief from pain, anxiety, and various medical conditions.

RSO is typically produced through a simple and crude extraction method that involves soaking cannabis buds in a solvent, such as isopropyl alcohol or naphtha. This process dissolves the cannabinoids and other compounds, and the resulting mixture is then evaporated to remove the solvent, leaving behind a thick, dark, and potent oil.

Key Differences: FECO vs RSO

Extraction Method:

One of the most significant differences between FECO and RSO is their extraction methods. FECO utilizes a more refined and controlled process that employs solvents like ethanol or CO2 to extract the compounds from the cannabis plant. This method ensures a cleaner and more precise extraction while preserving a broader spectrum of cannabinoids, terpenes, and other valuable phytochemicals.

On the other hand, RSO relies on a less sophisticated extraction method involving harsh solvents like isopropyl alcohol or naphtha. This crude method can result in a less precise extraction and may carry more impurities, potentially affecting the overall quality of the oil.

Cannabinoid Content:

The cannabinoid content in FECO vs RSO can vary significantly due to differences in the extraction process. FECO aims to capture a full spectrum of cannabinoids, including THC, CBD, and various minor cannabinoids. As a result, FECO often contains a more balanced and diverse cannabinoid profile, making it suitable for a broader range of therapeutic uses.

RSO, on the other hand, is known for its high THC content, often reaching levels of 90% or more. This makes RSO a potent option for those seeking the psychoactive effects of THC or relief from severe pain and symptoms. However, it may not be suitable for individuals looking for a more balanced cannabinoid profile or those sensitive to THC’s psychoactive effects.

Terpene Profile:

Terpenes are aromatic compounds in cannabis that contribute to its flavor and potential therapeutic effects. FECO, due to its full-spectrum extraction method, typically retains a more diverse and complex terpene profile. These terpenes may offer additional health benefits and contribute to the entourage effect, where the synergy between cannabinoids and terpenes enhances their therapeutic potential.

RSO, on the other hand, may have a less diverse terpene profile due to its less refined extraction process. This could mean missing out on potential synergistic effects that a broader terpene profile can provide.

Appearance and Consistency:

FECO and RSO also differ in terms of their appearance and consistency. FECO often has a more liquid or syrup-like consistency, making it easier to measure and dose accurately. It tends to have a darker color due to including a wide range of plant compounds.

RSO, on the other hand, is typically thicker and has a tar-like consistency. It is known for its dark and dense appearance, which can make dosing less precise and more challenging for some users.

Intended Use:

The choice between FECO and RSO often depends on the intended use and individual preferences. FECO, with its diverse cannabinoid and terpene profile, is suitable for those seeking a more holistic approach to cannabis therapy. It may be used for various conditions, including chronic pain, inflammation, anxiety, and more, without the intense psychoactive effects associated with high-THC RSO.

With its high THC content, RSO is primarily chosen by individuals seeking potent relief from severe pain, cancer-related symptoms, or other conditions requiring strong analgesic and psychoactive effects. However, it may not be the best choice for those sensitive to THC or seeking a more balanced cannabinoid profile.

To Conclude

In the debate of FECO vs RSO, it’s essential to recognize that both products have unique characteristics and applications. FECO, with its refined extraction process, diverse cannabinoid and terpene profile, and more liquid consistency, offers a holistic approach to cannabis therapy suitable for various conditions. On the other hand, RSO, known for its high THC content, thick tar-like consistency, and potent effects, is primarily chosen for severe pain relief and specific medical conditions.

Ultimately, the choice between FECO and RSO should be guided by your specific needs, preferences, and the advice of a healthcare professional. It’s crucial to start with low doses and gradually increase as needed while closely monitoring your body’s response to find the most effective and comfortable treatment for your circumstances.

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