RSO is easy to spot in a dispensary case. It’s thick, nearly black, and looks nothing like the clear concentrates sitting next to it. Finding the right one for your needs takes a little more homework.
Rick Simpson Oil is a whole-plant cannabis extract. Producers soak the flower in a solvent, cook the solvent off, and keep everything left behind, including cannabinoids, terpenes, and plant waxes. Unlike distillate, which strips the oil down to nearly pure THC, RSO gives you the whole mix. Unlike CBD oil, it’s built around THC and will get you high. Michigan has one of the busiest RSO markets in the country, so in this guide, we’re covering five options worth knowing about. We haven’t ranked them, since each one fits a different need, and you’ll get the most out of whichever one matches how you plan to use it.
Quick Comparison
| Brand | Potency | Size | Where to Buy | Best For |
| RickSimpsonOil.com | High-THC, full-spectrum, varies by product | 1g to 30g | Direct online, shipped by mail | Comparing many sizes and formats in one place |
| Cannalicious Labs | Full-spectrum, varies by blend | 1g darts, droppers, gummies | Michigan medical and adult-use dispensaries | Avoiding RSO’s harsh taste |
| Monster Xtracts | Full-spectrum, high-THC, varies by batch | 1g darts, 1,000mg tincture | Michigan dispensaries | A classic syringe from a Michigan extractor |
| Chill Medicated | 700mg THC per syringe | 1g glass syringe | Michigan dispensaries | Knowing your exact milligrams upfront |
| BANNED Edible Co. | Full-spectrum RSO blended with live resin | Varies by menu | Michigan dispensaries | More strain character than classic RSO |
1. RickSimpsonOil.com
Potency: High-THC, full-spectrum, varies by product
Size: 1g to 30g syringes
Where to Buy: Direct online, shipped by mail
Notable Features: Syringe sizes from 1g to 30g, plus several other formats
Best For: Comparing many sizes and formats in one place
If you want to try RSO in more than one way, RickSimpsonOil.com gives you more options than most dispensary menus carry. Their syringes range from 1g up to 30g, with their 1g starting at $60, and they also offer capsules, gummies, tinctures, and suppositories. If you’re still figuring out which format suits your routine, you can compare them all side by side without hopping between stores.
Rather than selling through Michigan dispensary counters, they sell direct and ship by mail. Since Michigan’s legal market runs through CRA-licensed retailers, weigh that difference before you order. They also don’t accept returns or refunds, so choose the size that fits your needs before you check out.
2. Cannalicious Labs
Potency: Full-spectrum, varies by blend
Size: 1g darts, plus droppers and gummies
Where to Buy: Michigan medical and adult-use dispensaries
Notable Features: Flavored RSO blends made in Pinconning
Best For: Avoiding RSO’s harsh taste
If RSO’s taste has kept you away, Cannalicious Labs makes it easier for you to get past with their flavored blends, like their tropical Recovery and mixed berry Rest. Their 1g Original RSO dart is one of the more affordable ways to find out whether RSO fits your routine before you commit to a bigger purchase.
They also mix their RSO into an MCT tincture with a graduated dropper, so you can measure by the line instead of eyeballing a grain of rice. Their Rest blend adds CBD and CBN, and their gummies give you a pre-portioned option you don’t have to measure at all.
3. Monster Xtracts
Potency: Full-spectrum, high-THC, varies by batch
Size: 1g darts, 1,000mg tincture
Where to Buy: Michigan dispensaries
Notable Features: Small-batch production in Jackson
Best For: A classic syringe from a Michigan extractor
If you want RSO the traditional way, Monster Xtracts gives you exactly that from their extraction facility in Jackson. Their 1g darts follow the classic whole-plant method, giving you the thick, dark oil RSO is known for in a syringe you can portion to your own needs.
If you’d rather skip the syringe, their 1,000mg RSO tincture gives you a liquid that’s easier for you to measure. They produce everything in small batches, so a dart you buy this month may test a little differently from next month’s. Check each label so you can adjust your dose with confidence.
4. Chill Medicated
Potency: 700mg THC per 1g syringe
Size: 1g glass syringe
Where to Buy: Michigan dispensaries, including medical menus
Notable Features: Glass syringe with the THC milligrams printed upfront
Best For: Knowing your exact milligrams upfront
Chill Medicated packs their full-spectrum RSO into a 1g glass syringe that holds 700mg of THC. Because you know the milligram count before you buy, you can plan small, consistent doses instead of doing percentage math at the counter.
They started as a caregiver operation in 2015 and launched in Michigan’s licensed market in 2018, so they’ve been making RSO for Michigan patients and consumers for years. Some stores carry their RSO on the medical menu, so ask your dispensary whether you’ll find it on the medical side, the adult-use side, or both.
5. BANNED Edible Co.
Potency: Full-spectrum RSO blended with live resin, varies by batch
Size: Varies by menu
Where to Buy: Michigan dispensaries
Notable Features: Hybrid of RSO and live resin made in-house in a state-approved lab
Best For: More strain character than classic RSO
BANNED Edible Co. built their name on Michigan edibles, and their RSO+ gives you a different experience than a classic syringe. They blend traditional full-spectrum RSO with their own live resin, so you get the whole-plant base of RSO along with more of the strain character live resin brings.
They make their RSO+ in-house from start to finish in a state-approved lab, so you know exactly who handled your oil at every step. Because their RSO+ combines two extract types, it won’t hit you quite like a traditional syringe, so check the label for the exact THC content and serving size before your first dose.
What to Look for in an RSO Product
RSO varies more than you might expect, and Michigan’s rules shape what you’ll find on the shelf. Before you buy, keep these factors in mind.
Michigan Legality
If you’re 21 or older, you can buy cannabis at any CRA-licensed dispensary, and every product you buy there has to be grown, processed, and tested inside Michigan. Federal law still treats mailing high-THC cannabis as a crime, so if you’re considering an online seller, look up their licensing status first.
Medical vs. Adult-Use Menus
Michigan dispensaries track medical and adult-use inventory separately, so you may see an RSO product on one menu and not the other. If you have a medical card, ask to see both menus so you don’t miss an option.
Purchase Limits
RSO counts as a concentrate. As an adult-use buyer, you can purchase up to 2.5 ounces per transaction, with no more than 15 grams in concentrate form. If you’re a registered patient, you’re capped at 2.5 ounces per day and 10 ounces per month.
Potency and Labels
A label that shows total milligrams per syringe makes dosing far easier for you than one showing only a percentage. If you only see a percentage, multiply it by the oil’s weight in milligrams. A 1,000mg syringe at 70% THC holds 700mg.
Taste and Format
Traditional RSO tastes harsh, and if that’s held you back, you have gentler options. Flavored blends, tinctures, and gummies give you easier ways in, and you may find a graduated dropper simpler to measure than a syringe.
Safe Dosing
When you swallow THC, your liver converts it into 11-hydroxy-THC. You may not feel the effects for 30 minutes to 2 hours, and they can keep building after that. Start with an amount about the size of a grain of rice, wait at least two hours before taking more, skip driving, and talk with your doctor if you take other medications.
Bottom Line: Choosing the Right RSO Option in Michigan
Choosing RSO in Michigan comes down to how you want to dose, how much the taste bothers you, and how much label detail you need. RickSimpsonOil.com gives you the widest range of sizes and formats in one place. Cannalicious Labs softens the flavor for you, Monster Xtracts keeps it classic, Chill Medicated spells out your milligrams, and BANNED Edible Co. gives you live resin in the mix.
Whichever option you choose, read the current label, start small, and increase your dose slowly once you know how the oil affects you.
Frequently Asked Questions
Here are answers to some common questions about buying RSO in Michigan.
Do I Need a Medical Card to Buy RSO in Michigan?
No, not if you’re 21 or older. You can buy RSO at any licensed adult-use dispensary with a valid ID, though you may only find some RSO products on medical menus.
How Much RSO Can I Buy in Michigan?
As an adult-use buyer, you can purchase up to 15 grams of concentrate per transaction as part of the 2.5-ounce limit. If you’re a registered patient, your daily and monthly limits are 2.5 ounces and 10 ounces.
What Does “Dart” Mean on a Michigan Dispensary Menu?
A dart is the term many Michigan menus use for an RSO syringe. If you can’t find RSO on a menu, try searching for “dart” instead.
How Long Does RSO Take to Kick In?
When you swallow RSO, you’ll usually feel it within 30 minutes to 2 hours, and the effects can keep building after that. Wait at least two hours before you consider taking more.
