06/02/2026
FSO vs RSO: What’s the Difference & Why It Matters
We get a lot of questions about full-spectrum oils, especially FSO and RSO. Both are powerful whole-plant extracts, and both have helped people deeply. The difference comes down to how they’re made and what that means for the final experience.
RSO (Rick Simpson Oil) is typically made using high heat during parts of the extraction process and often involves a purging method that can slightly alter some of the more delicate plant compounds. It’s known for being a strong, traditional full-plant concentrate that many people use for general wellness support.
FSO (Full Spectrum Oil) is crafted with a gentler, lower-heat approach designed to preserve a broader range of the plant’s natural compounds especially the terpenes and secondary cannabinoids that can be sensitive to heat.
The goal with FSO is simple:
keep more of the plant intact
maintain a wider spectrum of natural compounds
support a more complete “entourage effect” profile
Why people choose FSO
Many prefer FSO when they’re looking for a more nuanced, aromatic, and plant-intact experience where the full complexity of the cultivar is still present in the oil.
The important truth
Neither is “better” in a universal sense. They’re just different tools:
RSO = traditional, robust, widely used
FSO = more delicate preservation of the plant’s full profile
Both reflect the power of whole-plant medicine when made with intention.
At the end of the day, it’s not about competition it’s about understanding the plant, the process, and what works best for your body.