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Rick Simpson Oil, or RSO, is one of the most concentrated products cannabis has to offer. Canadian engineer and cannabis advocate Rick Simpson developed the formula in 2003 while treating his own skin cancer, and the recipe he shared has stuck around ever since.
Today, this potent extract is available at trusted dispensaries like MAC, with locations in Amherst and Chicopee, Massachusetts. Here’s what RSO is, how it’s used, and where to find it near you.
What Is RSO?
On a technical level, RSO is a thick, dark, tar-like extract made by soaking cannabis in a solvent such as ethanol, straining the mixture, and evaporating the liquid until a concentrated oil remains. The result is a full-spectrum product that carries a total cannabinoid content of nearly 70%, with THC as the leading compound alongside minor cannabinoids and preserved terpenes. Because the process pulls so much from the plant, RSO delivers a strength that few other products can match.
Can You Smoke RSO?
Not really, and that’s by design. RSO is meant for oral use, not inhalation. The oil is thick and tarry, and any residual solvent from extraction breaks down more efficiently through digestion than through the lungs. Most people take a rice grain-sized dose under the tongue, swallow it directly, stir it into food, apply it topically, or reach for pre-portioned options like RSO gummies.
How RSO Works
RSO interacts with the body’s endocannabinoid system, the network responsible for balance across sleep, mood, and overall comfort. Its cannabinoids, including THC and CBD, work together in what’s often called the entourage effect, supporting the plant’s natural range of benefits. Every body responds differently, so starting low and going slow is the best approach with any full-spectrum extract this concentrated.
How Much Does RSO Cost?
Pricing depends on the producer, format, cannabinoid content, and where you shop. In the Massachusetts market, 1g RSO syringes typically run $30 to $60, and RSO-infused edible packs land between $25 and $50, depending on total dosage and package size.
Where Can I Get RSO Near Amherst or Chicopee?
Both MAC locations carry RSO in a range of formats. Shoppers near Amherst can find full-spectrum RSO syringes and RSO-infused edibles like gummies at our Amherst location, and Chicopee shoppers will find the same lineup at our Chicopee dispensary. Order ahead online for pickup at either shop!
Top RSO Picks at MAC
Consider these seven current RSO options across syringe and edible formats, each crafted in-house from a blend of our own strains.
- MAC Sativa Blend RSO: A sativa-forward 1g RSO syringe
- MAC Indica Blend RSO: An indica-leaning 1g RSO syringe
- MAC Hybrid Blend RSO: A balanced hybrid 1g RSO syringe
- MAC Strawberry RSO: 5mg strawberry SMACS gummies infused with full-spectrum RSO
- MAC Tripleberry RSO: 5mg triple berry SMACS gummies with RSO for low-dose portioning
- MAC Blueberry Lemonade RSO: 5mg blueberry lemonade SMACS gummies with RSO
- MAC Honey RSO: 5-pack of 10mg applicators, a full-spectrum blend of RSO and honey
Ask Our Team About Current RSO Options
New to RSO or coming back for more? Our budtenders are happy to walk you through formats, ratios, pricing, and dosing. Wondering where to find Rick Simpson Oil in Massachusetts? Start at MAC.
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