When you’re comparing RSO syringes, you’re usually looking for more than just the cheapest option. Potency, consistency, syringe size, and formulation make a major difference depending on how frequently you take RSO and what you’re taking it for.
Some RSO syringes focus on high-THC full-spectrum oil, but others include CBD, CBN, CBG, and other cannabinoids which change the effects you get.
Size options, dosing control, and availability can also vary quite a bit from one brand to another.
In this guide, we compared some of the most popular RSO syringes available right now, including what stands out about each one, where they differ, and which products fit your needs best.
Let’s take a look!
Best RSO Syringes at a Glance
| Product | Best For | Formula | Sizes | Price |
| RickSimpsonOil.com RSO Syringes | If you’re looking for the most trusted source of authentic, reliable, high-THC RSO | High-THC full-spectrum RSO | 1g, 5g, 10g, 15g, 20g, 30g | Starts at $60 for 1g |
| Emerald Bay Extracts Syringes | If you want different RSO formulations that include CBD and CBG or use ratioed formulas | Full-spectrum THC, CBD, and CBG RSO formulas | Typically 1g | Around $30-$60 |
| Lazarus Naturals RSO Full Spectrum CBD Oil Syringe | Best if you have lower THC tolerance but still want similar benefits as RSO | Full-spectrum hemp-derived CBD oil | 2.5mL, 10mL | Around $24-$70 |
| Nature’s Heritage RSO Syringe | Buyers looking to get high-quality, high-THC RSO at dispensaries | Ethanol-extracted full-spectrum RSO | Typically 1g | Around $40-$70 |
| Texas Original 0:1 RSO Indica Syringe | Best if you’re a medical cannabis patient in Texas | High-THC full-spectrum indica RSO | 0.5g | Around $50 |
| Newport Bitch Star Extract RSO Syringe | If you’re a first time buyer or would like to buy in smaller batches | High-THC full-spectrum RSO | 1g | Around $30-$50 |
1. RickSimpsonOil.Com RSO Syringes
Best For: If you’re looking for the most trusted source of authentic, reliable, high-THC RSO
Formula: High-THC full-spectrum RSO
Sizes: 1g, 5g, 10g, 15g, 20g, 30g
Price Range: Starts at $60 for 1g, with lower per-gram pricing on larger syringes.
At Rick Simpson Oil, our RSO syringes contain authentic, high-THC full-spectrum oil in a format that gives you more control over dosing. Our syringes come pre-filled and can be used orally, sublingually, can be mixed into food, or applied topically.
Our syringes are pre-filled with full-spectrum cannabis oil and designed for consistency, high potency, and to give you precise control over dosing.
Instead of you having to guess with pre-measured edibles or diluted tinctures, you can dispense only what you need, whether you’re following a structured RSO protocol or adjusting gradually over time.
One of the biggest advantages is the size range. We offer RSO syringes in 1g, 5g, 10g, 15g, 20g, and 30g options, allowing you to choose based on your treatment plan, tolerance, and budget.
If you’re new to taking RSO, our smaller syringes, like our 1g RSO syringe, are better for using small amounts at a time and slowly increasing or decreasing your preferred dose.
If you use RSO for medical purposes or recreationally, our larger syringes have a lower price per gram which means you’ll save extra by purchasing our larger format.
Our potency and authenticity claims are backed by third-party lab testing on every product. A recent Certificate of Analysis (COA) by our partner laboratory shows total THC levels around 93.3%, with THCA at 67.57% and total active cannabinoids near 69.39%, confirming the high-potency, full-spectrum nature of our RSO.
Because RSO is very viscous it dispenses slowly, which helps with controlled dosing, especially if you’re starting with very small amounts. Compared to diluted tinctures or pre-measured edibles, our syringe format gives you more flexibility over how much RSO you take and how you use it.
Our RSO syringes are designed for shoppers looking for authentic Rick Simpson Oil and strong THC potency rather than lighter CBD-forward products. If you’re new to RSO, we recommend starting slowly due to the high THC concentration.
Pros
- Authentic high-THC, full-spectrum formulation
- Ethanol extracted which increases shelf life and purity
- Multiple syringe sizes (1g-30g)
- Third-party lab tested for potency and safety
- Official distributor of Rick Simpson Oil
Cons
- High potency may feel too strong for beginners or CBD-first users
- Protocol-focused approach is not meant for casual beginners
- Limited strain-specific variety compared to other brands
2. Emerald Bay Extracts Syringes
Best For: If you want different RSO formulations that include CBD and CBG or use ratioed formulas
Formula: Full-spectrum THC, CBD, and CBG RSO formulas
Sizes: Typically 1g syringes
Price Range: $30-60 per syringe
Emerald Bay Extracts takes a different approach from brands that focus on one standard RSO formula. Instead, the company leans heavily into strain-specific full-spectrum syringes with options across indica, sativa, hybrid, CBD, and CBG categories.
Their lineup includes strains and formulations like Super Lemon Haze, OG Kush, Gelato 41, Cannatonic, and White CBG, giving buyers more flexibility to shop based on cannabinoid content and strain preference rather than choosing one universal oil.
Their syringes use medical-grade hardware with clear markings that make dosing easier to control. Emerald Bay also markets itself as a nurse-led company focused on full-spectrum cannabis extracts and terpene preservation.
One of the biggest selling points of Emerald Bay is their variety. Compared to brands built around one core formula, Emerald Bay gives experienced users more room to experiment with different strains and cannabinoid combinations.
The biggest downside is accessibility and complexity. Availability depends heavily on dispensary inventory, and the large selection may feel overwhelming for newer buyers who prefer a simpler RSO option.
Pros
- Wide strain and cannabinoid selection (THC, CBD, CBG)
- Medical-grade syringe hardware with precise dosing markings
- Full-spectrum RSO preserved for strain-specific effects
Cons
- Dispensary-only availability limits access in some areas
- Large selection may feel overwhelming for beginners
- Less focused on strict protocol-style dosing in contrast to RickSimpsonOil.com
3. Lazarus Naturals RSO Full Spectrum CBD Oil Syringe
Best For: If you have lower THC tolerance but still want similar benefits as high-THC RSO
Formula: Full-spectrum hemp-derived CBD oil blended with organic coconut oil.
Sizes: 2.5mL (1000mg CBD) and 10mL (4000mg CBD) syringes.
Price Range: Typically around $24-$70 depending on size and retailer.
Lazarus Naturals approaches RSO differently by focusing on high-concentration CBD instead of high-THC cannabis oil.
Their extract keeps the thick texture and syringe-style dosing many buyers expect with RSO, but with much lower THC levels overall.
Each syringe contains roughly 400mg of CBD per milliliter, with graduated markings that make smaller, repeatable doses easier to measure. Lazarus Naturals recommends starting around 50-100mg and adjusting gradually depending on personal preference and tolerance.
The formula uses full-spectrum hemp extract blended with organic coconut oil, giving it the sticky consistency commonly associated with RSO-style products. Lab testing also shows THC levels at trace amounts, making this a much less intoxicating option than traditional high-THC RSO.
One thing that helps Lazarus Naturals stand out is accessibility. They offer free shipping over $50, a 90-day assistance program, and transparent third-party lab testing, which makes it more practical for regular CBD use.
This product is geared much more toward daily CBD use than strong THC-heavy effects. Buyers looking for a more traditional high-THC RSO experience may find the formula too mild.
Pros
- High-concentration full-spectrum CBD (400mg/ml)
- Thick RSO-style texture with precise plunger dosing
- Beginner-friendly and low in THC
Cons
- Not a traditional high-THC RSO formula
- Effects may feel mild for experienced THC users
- Sticky consistency has a learning curve for dosing
4. Nature’s Heritage RSO Syringe
Best For: Buyers looking to get high-quality, high-THC RSO at dispensaries
Formula: Ethanol-extracted full-spectrum RSO available in strain-specific varieties depending on the dispensary.
Sizes: 1g
Price Range: Usually around $40-$70 for a 1g syringe, depending on the dispensary and strain.
Nature’s Heritage keeps its RSO syringe fairly simple, which is part of the appeal for many dispensary shoppers. They focus on a traditional full-spectrum extract with a thick, dark consistency that’s closer to classic RSO than more refined cannabis oils.
The syringes are commonly stocked in licensed dispensaries across markets like Massachusetts and Maryland, and strain availability often varies by location. Depending on the dispensary, buyers may find indica, hybrid, or cultivar-specific versions rather than one universal formula.
That strain variety is one of the biggest differences with Nature’s Heritage. Instead of focusing on a single flagship RSO formula, they lean more heavily into dispensary-style shopping where strain selection changes based on current inventory.
The oil can be taken orally, applied topically, or incorporated into infused foods depending on personal preference. Like most high-THC RSO products, the thick texture requires slow dispensing and careful dosing.
One downside is consistency between markets. Potency, strain availability, and product naming can vary depending on what a dispensary currently carries.
Pros
- Ethanol-extracted full-spectrum oil
- Thick, traditional RSO texture
- Strain-based options often available at dispensaries
Cons
- Availability depends on dispensary stock
- Potency and strain selection vary by batch
- Limited direct brand-level product detail
5. Texas Original 0.1 RSO Indica Syringe
Best For: Medical cannabis patients in Texas wanting high-THC RSO
Formula: High-THC full-spectrum indica RSO made from their Texas OG strain.
Sizes: 0.5g
Price Range: $50
Texas Original’s 0:1 RSO Indica Syringe is designed specifically for patients in Texas’s Compassionate Use Program. Unlike many dispensary RSO products, this syringe is positioned as a medical-use oral formulation with carefully measured dosing increments.
Each syringe contains roughly 410-420mg THC total, with dosing measured in precise 0.01mL increments. They recommend starting with very small amounts (about half a grain of rice) before increasing slowly over time.
The thick full-spectrum oil can be taken orally, sublingually, or added to food depending on personal preference. Texas Original also markets the product around symptom-focused use for issues like pain, insomnia, nausea, appetite loss, anxiety, and muscle spasms.
One of the biggest limitations is product accessibility. These syringes are only available through Texas’s medical cannabis program, and the potency may feel overwhelming for inexperienced THC users.
Pros
- Medical-program focused formulation
- Precise dosing increments (0.01 mL)
- High-potency full-spectrum extract
Cons
- Not recommended for cannabis beginners
- Limited to Texas medical access
- Strong flavor and thick texture may require workarounds
6. Newport Bitch Star Extract RSO Syringe
Best For: If you’re a first time buyer or would like to buy in smaller batches
Formula: High-THC full-spectrum RSO
Sizes: 1g syringe
Price Range: $60 for 1g
Newport Bitch’s Star Extract RSO syringe is designed for shoppers who want to try full-spectrum RSO without committing to a larger multi-gram syringe.
The smaller format makes it easier to start slowly, test tolerance, and see how RSO fits into your routine before moving up to larger sizes.
Their syringe contains concentrated full-spectrum cannabis oil with cannabinoids, terpenes, and other plant compounds preserved in the extract. It can be taken orally or applied topically depending on personal preference.
Compared to larger syringes designed for regular long-term use, the 1g format is better if you’re a casual shopper or you prefer more dosing control. The thick consistency still requires slow dispensing, especially if you’re starting with very small rice-grain-sized amounts.
Like most high-THC RSO products, potency can feel strong for inexperienced users.
Pros
- 1g starter-size syringe for controlled dosing
- Real full-spectrum RSO extract
- Can be used orally or topically
- Third-party lab tested
Cons
- May be too potent if you have a lower THC tolerance
- Thick syringe texture can take practice to extract and dose it
- Smaller size may not be ideal for long-term protocol users
What to Look for in an RSO Syringe
A few factors matter more than others when comparing RSO syringes.
- Syringe size affects value: Larger syringes usually lower the cost per gram. Smaller options tend to make more sense for first-time buyers.
- Availability can vary quite a bit: Certain brands are easy to order from online year-round. Others depend on dispensary inventory or state medical access.
- Potency levels are not all the same: High-THC syringes may feel overwhelming for newer users. Balanced or CBD-heavy formulas usually feel less intense.
- Brands approach RSO differently: Some stick to one traditional full-spectrum formula. Others offer strain-specific or cannabinoid-specific options.
How We Chose The Best RSO Syringes
There’s a lot of RSO syringe companies out there, ever since the 2018 Farm Bill, many reputable companies have popped up… But a lot of bad ones, too. So here’s the guidelines we used for choosing each brand.
Value
Value can be a vague word, but here’s what to consider. If the brand you’re looking to buy RSO from prices their product higher than other brands it can usually mean that their products are better quality.
Cheaply priced RSO (under $20/gram) isn’t the best sign if you’re looking for quality. While higher prices don’t always mean better quality, they’re good indicators.
On the other hand, if you try a product that’s highly priced but it doesn’t deliver, there’s no point in buying from that brand again.
In the end, what you pay for is often what you get, but value is what you’re getting for what you pay. A little confusing but if you feel satisfied with the price and results, you’ve found the right brand.
Lab Testing
This is a must. Plain and simple, every reputable brand selling RSO products should have evidence that’s available to customers of third-party lab testing.
Lab testing ensures quality, correct potency levels, cannabinoid content, and safety. If you’re taking a large dose of what is supposed to be a low-THC RSO syringe and it isn’t low THC, that can cause issues if your THC tolerance is lower.
Product Type
Every brand in our guide has a unique, but well-established RSO syringe category.
This is important because if RSO products, syringes in particular, are more of a side product on a brand’s website, the quality of what you get may not be the best.
Also, we included brands that offer RSO-style syringes but with different kinds of cannabinoid contents so you have extra variety to choose from. For example, Emerald Bay Extracts offers CBD:THC, and CBG:THC syringes.
More options means finding the RSO syringe you need just got easier.
Pricing
The reality is, RSO, like most cannabis products, is fairly expensive.
But depending on why you’re taking RSO, the price can vary a lot.
If you’re stocking up, bulk deals, discounts, and price per gram ratios can shave off a lot of cost.
Our larger syringe options have a lower price per gram than our single gram syringe which is $60. If you use RSO for medical reasons, the cost can be higher even if bulk deals apply, but that’s unavoidable most of the time because the amount you’re buying will usually be larger.
We included brands that offer RSO at a mix of different prices so depending on your budget, you can find what you need at the right price.
Buying RSO By Use Case
Price and amount limitations are dependent on why you buy RSO.
Though we touched on this earlier, the reason you buy RSO will affect how much you can get and at what price.
If you’re a recreational user, you may be buying an amount that’s between beginners and medical users, so be mindful of state restrictions on how much RSO you can possess or buy at a time. Usually the limit average is anywhere from 5-10 grams.
If you’re a medical user, these limitations can apply as well. Typically, if you’re using RSO for medical purposes you’ll be buying set protocols. These protocols can be pricey but bulk discounts and larger syringe formats (lower price per gram) can help you reduce how much you pay.
For beginners, you may be inclined to buy a single gram syringe, which will cost slightly more per gram due to a smaller format.
In general, our recommendation is to be mindful of why you’re buying RSO, how much you realistically need, and what that price will be. Knowing these can also help you choose which supplier is right for you.
Conclusion: What Is the Best RSO Syringe?
The best RSO syringe ultimately comes down to the kind of experience you’re looking for. You may want high-THC full-spectrum oil for regular RSO use, or you might prefer CBD-dominated formulas or strain-specific dispensary options.
If you’re looking for authentic Rick Simpson Oil with high potency, flexible sizing, and third-party lab testing, our RSO syringes stand out for both consistency and long-term value.
With sizes ranging from 1g to 30g, it’s easier to find an option that fits both your routine and budget.
Explore our full selection of authentic RSO syringes to find the right fit for your needs.
Researching other RSO products? Check out our guides to:
Best RSO Syringes: Frequently Asked Questions
These are the most common questions buyers ask when comparing and using RSO syringes.
What Is an RSO Syringe?
An RSO syringe is a dispenser filled with concentrated full-spectrum cannabis oil designed for controlled oral, sublingual, or topical use.
What Is the Best Way to Use RSO Syringes?
The best way to use an RSO syringe depends on the product and your comfort level. Most are designed for oral, sublingual, or topical use, with many buyers starting with a very small rice-grain-sized amount before adjusting gradually over time.
How Much THC Is in a 1g RSO Syringe?
A 1g RSO syringe usually contains several hundred milligrams of THC, but potency varies by product. Check the label or lab results for exact numbers.
What Is the Best Syringe for RSO?
The best RSO syringe depends on your goals, THC tolerance, and preferred formula. Some buyers prioritize high-THC full-spectrum oil, while others prefer CBD-focused or strain-specific options.
How Long Will One RSO Syringe Last?
How long a syringe lasts depends on your dose size. Small doses can last weeks, while heavier use goes faster.
Is It Legal to Buy RSO Syringes Online?
Buying RSO online depends on local laws and THC limits. High-THC products usually require legal medical or licensed access.
