Best RSO Oils in 2025: Top Rated Brands and Lab-Tested Picks

As the popularity of Rick Simpson Oil (RSO) continues to grow, so does the number of brands trying to sell it. But not all RSO is created equal — some products are high-quality, clean, and full-spectrum, while others are poorly made or even mislabeled.

If you’re looking for authentic, lab-tested RSO, this 2025 roundup covers the most trusted brands, where to find them, and what makes them stand out. Whether you’re buying for educational, wellness, or personal use, this list helps you identify safe, reliable options that actually deliver what they promise.

What Makes a Good RSO Oil?

Before diving into brands, let’s quickly review what separates real RSO from the rest:

1. Full-Spectrum Extraction – Must contain the complete range of cannabinoids and terpenes, not just THC or CBD.

2. Lab-Tested – COAs (Certificates of Analysis) verifying potency and purity.

3. Solvent Type – Ethanol or CO₂ preferred; no residual hydrocarbons.

4. THC Potency – Between 60–90% total cannabinoids is typical.

5. Color and Texture – Dark amber to black, thick, and sticky (not runny or clear).

💡 Tip: Always check the QR code or batch number on packaging to confirm authenticity and safety.

Best RSO Oils of 2025

Here are the top-performing RSO oils based on lab results, customer reviews, and brand transparency.

1. Phoenix Tears (Rick Simpson Original)

THC Potency: 80–90%

Extraction Method: Ethanol

Why We Love It:

This is the original RSO brand created by Rick Simpson himself. Available through PhoenixTears.ca, it’s the most authentic version of the oil, following Rick’s original full-spectrum process.

Best For: Educational use, authenticity seekers, and those who want a trusted formula directly from the source.

2. Curaleaf RSO

THC Potency: 65–75%

Extraction Method: CO₂ and ethanol

Why We Love It:

Curaleaf’s RSO is available in multiple states and has consistent testing across all batches. They offer both Indica and Sativa options, clearly labeled with terpene profiles.

Best For: Medical patients and consumers in licensed U.S. markets looking for consistency and accessibility.

3. Trulieve RSO

THC Potency: 70–85%

Extraction Method: Ethanol

Why We Love It:

Trulieve’s RSO lineup includes THC, CBD, and 1:1 blends, perfect for users who want options for different effects. Their oils are thick, true to color, and thoroughly lab-tested.

Best For: Florida medical users and those seeking hybrid formulations.

4. Mary’s Medicinals RSO

THC Potency: 75–80%

Extraction Method: Ethanol

Why We Love It:

Mary’s Medicinals is known for pharmaceutical-level precision. Their RSO comes in measured syringes with accurate dosing marks and clean extraction.

Best For: Users who prioritize dosage control and medical-grade manufacturing.

5. RSO+GO (California)

THC Potency: 80–90%

Extraction Method: CO₂

Why We Love It:

RSO+GO is a California-based brand offering some of the most refined full-spectrum oils available. Their RSO retains full cannabinoid and terpene content without harsh solvents.

Best For: West Coast consumers who want clean, high-potency RSO with minimal additives.

6. Wana Wellness Full Extract Oil

THC Potency: 70–80%

Extraction Method: Ethanol

Why We Love It:

From the makers of Wana gummies, this RSO maintains their same commitment to quality. It’s a smooth, balanced oil great for adding to capsules or edibles.

Best For: Users who want brand trust and balanced cannabinoid ratios.

7. FECO by Avexia

THC Potency: 60–75%

Extraction Method: Ethanol

Why We Love It:

Avexia’s “Full Extract Cannabis Oil” (FECO) is a clean, medical-grade RSO alternative. It’s designed for oral or sublingual use and comes with full-spectrum lab results for each batch.

Best For: Consumers seeking mild-to-moderate potency with verified lab testing.

Honorable Mentions

• RSO Center: A curated network of verified RSO producers and educational resources.

• Papa & Barkley Releaf Oil: Technically not RSO but similar full-spectrum effects with lower potency.

• 710 Labs Rosin: Solventless extract alternative (great for rosin comparison).

Where to Buy Verified RSO

For safety, always purchase RSO from licensed dispensaries or verified websites:

• U.S.: Curaleaf, Trulieve, RSO+GO, and Mary’s Medicinals via dispensary menus or state-licensed delivery.

• Canada: PhoenixTears.ca or provincial retailers (Ontario Cannabis Store, BC Cannabis).

• U.K.: Legal only through prescription (contact medical cannabis clinics).

Use tools like Weedmaps or Jane to search “RSO near me” or “Rick Simpson Oil dispensary” for local options.

How to Compare RSO Brands

When comparing products, focus on these three things:

1. THC percentage – Aim for 65–90% total cannabinoids.

2. Testing transparency – Always review the COA or QR code.

3. Extraction method – Prefer ethanol or CO₂, avoid naphtha or butane.

If a product lacks lab data, skip it — quality RSO brands are proud to show their results.

RSO Pricing Overview (2025)

Final Thoughts

Finding the best RSO oil is about more than THC numbers — it’s about quality, safety, and trust. Stick with verified brands, read lab reports, and avoid unlicensed sellers.

RSO should always look dark, smell earthy, and feel thick — that’s how you know it’s authentic.

For more guides and comparisons, check out:

• RSO vs. Rosin: What’s the Difference?

• RSO Dosage Calculator: Find Your Perfect Dose

• Where to Buy Rick Simpson Oil Near You (2025 Update)