If you’ve browsed a dispensary menu in New Jersey, you’ve probably seen a thick, dark oil labeled RSO and wondered what makes it different.

Rick Simpson Oil (RSO) has built a loyal following among patients and longtime consumers. But it’s also one of the more misunderstood products in the category.

What Is RSO?

RSO gets its name from Rick Simpson, a Canadian cannabis advocate who developed the oil in the early 2000s after being diagnosed with basal cell carcinoma.

He applied a homemade cannabis extract directly to his skin and reported noticeable improvement within days. Afterward, Simpson spent years giving the oil away for free while pushing for wider access to medical cannabis.

The extract he created is a full-spectrum cannabis oil. So, it holds onto a much broader slice of the plant than most concentrates. Instead of being an isolated compound, RSO retains the cannabinoids, terpenes, and other plant material because of how it’s extracted.

That’s why it looks so different from most cannabis concentrates. While distillate or shatter are clear with an amber or other brown hue, RSO is dark brown to black, thick, and sticky. Plus, it has a consistency closer to molasses than oil.

THC content in RSO is between 60% and 90%. That’s much higher than flower. Because of that potency and its full-plant makeup, RSO has become a go-to option for people managing chronic pain, nausea, sleep issues, and other conditions that bring them to medical cannabis in the first place.

It’s almost always taken orally, via a syringe, mixed into food, or loaded into a capsule. You shouldn’t smoke or vape RSO, since its solvents are potentially harmful to your lungs.

RSO vs Distillate: What’s the Difference?

RSO and distillate get compared constantly. They’re both high-THC cannabis oils. But that’s where the similarities end.

Distillate is a refined extract that isolates a single cannabinoid, usually THC, and strips out nearly everything else. The result is clear, odorless, and flavorless. This is why you find it in vape cartridges and edibles where a neutral taste matters.

Rather than refining the plant down to one compound, RSO producers preserve the terpenes, cannabinoids, and flavonoids that come along with the extraction.

Many people describe RSO’s effects as more full-bodied and longer-lasting than a distillate product at the same THC percentage. The entourage effect, when cannabis compounds work better together, makes the difference.

The tradeoff is flavor and texture. RSO tastes strongly of cannabis and has a rougher, thicker consistency than the polished products around it.

Is RSO Legal in New Jersey?

Yes. RSO is a fully legal product at any licensed New Jersey dispensary, regulated the same way as flower, vapes, and edibles by the state’s Cannabis Regulatory Commission. You don’t need a medical card to buy it. Adults 21 and older can walk into an adult-use dispensary with a valid ID and purchase it directly, and medical cannabis patients have access to it too, often at a reduced tax rate.

New Jersey classifies RSO as a concentrate. So a single transaction caps out at 4 grams, or the liquid equivalent. Statewide, adults can legally possess up to 6 ounces of cannabis products at once.

If you’re visiting from out of state, New Jersey offers a path for medical patients too. Consult with a registered New Jersey provider, get enrolled in the state’s registry, and you can receive a nonrenewable six-month card that lets you buy through the medical program while you’re here.

Where to Buy RSO in New Jersey

New Jersey now has well over 300 licensed dispensaries. But not every dispensary has the same selection. And some municipalities have opted out of cannabis retail entirely. Here’s a look at legal options by region:

North Jersey

• URB’N Dispensary: Located in Newark, URB’N was the city’s first licensed dispensary and serves both medical and adult-use customers. It’s pharmacist-owned and independently run, and it offers delivery across Hudson and Essex County.
• RIPT Dispensary: Sitting right on Broadway in Jersey City, RIPT was one of the first shops in the city to launch recreational sales. Its menu spans flower, concentrates, vapes, and edibles.

Central Jersey

• Earth & Ivy: Based in New Brunswick, Earth & Ivy is a recreational-only shop in Middlesex County.
• Zen Leaf: Just outside Trenton in Lawrence Township, Zen Leaf features medical and recreational products off Route 1.
• Theory Wellness: This dispensary is in Trenton and also features RSO.

South Jersey and the Shore

• Curaleaf: Located in Bellmawr, just outside Camden, Curaleaf stocks a broad concentrate selection alongside flower and edibles.
• Camden Apothecary: Located in Camden, this recreational-only shop gives South Jersey residents a licensed option.

Call ahead or check the online menu first. RSO is a lower-volume item compared to flower and vapes. So, stock rotates faster than you’d expect.

RSO Dosing: Start Low and Go Slow

Treat dosing seriously. This isn’t a product where a 10 mg serving feels the way a 10 mg THC distillate gummy does. Since RSO carries the full plant profile at high concentration, the effects land heavier and last longer.

Start with an amount roughly the size of a grain of rice and give it time to work before taking more. Effects can take one to two hours to fully kick in. So, resist the urge to take a second dose just because you don’t feel anything.

Notably, RSO is fully legal for medical patients and adult-use consumers 21 and older, as long as you stay within the New Jersey purchase and possession limits.

If you’re new to RSO, or cannabis in general, start with a small dose, buy from a trusted source, and give yourself time to feel it out before deciding how much you need.

Frequently Asked Questions

Is RSO the same thing as CBD oil?

No. RSO is high in THC, often between 60% and 90%, though it may contain some CBD depending on the strain used. CBD oil contains little to no THC and won’t produce an intoxicating effect.

Do I need a medical card to buy RSO in New Jersey?

No. Adults 21 and older can buy RSO at any licensed adult-use dispensary without a medical card. Medical patients also have access, often at a lower tax rate.

How much RSO can I buy at once in New Jersey?

A single transaction is capped at 4 grams of concentrate, or the liquid equivalent. Total possession across all cannabis products is capped at 6 ounces statewide.

Why does RSO look and taste different from other cannabis oils?

RSO is a full-spectrum extract. So it retains terpenes and plant compounds that get stripped out of refined products like distillate. That gives it its dark color, thick texture, and stronger flavor.