Is FECO stronger than RSO?

They're comparable in potency (90-96% cannabinoids). FECO often has slightly higher total cannabinoid content due to better terpene retention, but THC levels are similar.

Which tastes better - RSO or FECO?

FECO has a smoother, more palatable taste. RSO can be harsh due to residual plant compounds. Most users prefer FECO's flavor profile.

Can I use FECO for the Rick Simpson protocol?

Yes. FECO works identically for the 90-day protocol. The dosing is the same. Many users actually prefer FECO for the protocol due to its cleaner taste.

Why is RSO cheaper than FECO?

RSO uses less expensive solvents and a simpler extraction process. FECO requires food-grade ethanol and additional winterization steps, which increases production costs.

Which is safer - RSO or FECO?

Both are safe when properly made. FECO uses food-grade ethanol which some consider cleaner. Our RSO is fully purged of all solvents and lab-tested for safety.

Do they have different effects?

Effects are nearly identical. Some users report FECO provides a slightly smoother experience due to better terpene preservation (entourage effect).

Updated December 2025

RSO vs FECO 2025: Which Full-Spectrum Oil Is Right for You?

Both Rick Simpson Oil (RSO) and Full Extract Cannabis Oil (FECO) are powerful full-spectrum extracts. But they're not identical. This guide breaks down the real differences based on December 2025 lab results so you can make an informed choice.

Shop Lab-Tested RSO Shop Lab-Tested FECO

Side-by-Side Comparison (December 2025 Lab Results)

Feature	Rick Simpson Oil (RSO)	Full Extract Cannabis Oil (FECO)
Potency	90–95% THC	90–96% total cannabinoids
Extraction Solvent	Naphtha/Isopropyl	Food-grade ethanol
Taste	Harsh, plant-like	Smoother, earthy
Color	Dark black/tar	Dark amber, translucent
Terpene Retention	Moderate	High
Price (per gram)	$70	$75
Best For	Traditional protocol followers	Daily wellness, sensitive users

Rick Simpson Oil (RSO)

Traditional Formula

Original protocol formula
Most affordable option
90-95% THC potency
Harsher taste profile

Shop RSO - $60/g

Recommended FECO Full Extract Cannabis Oil syringe - amber colored premium extract

Full Extract Cannabis Oil (FECO)

Premium Extract

Cleaner ethanol extraction
Smoother, earthy taste
Better terpene retention
90-96% total cannabinoids

Shop FECO - $55/g

Which Should You Choose?

Choose RSO If:

You want the original Rick Simpson formula
Budget is your primary concern
You don't mind a stronger taste
You're following the traditional 90-day protocol

Choose FECO If:

You prefer a cleaner extraction method
Taste matters to you
You want maximum terpene benefits
You're using for daily wellness