4C Labs Premium JKZ T18
This is the name on the prescription.How to read this nameStrainJokerz
4C Labs Premium JKZ T18 is a medical cannabis flower from 4C Labs, available in the UK on prescription only. Its strain is Jokerz (hybrid). Its label gives THC 16.2 to 19.8% and CBD <1%. Its list price is £6 a gram; pharmacies set their own prices.
Recommended price
£6.00/g
Jokerz
4C Labs
What this product is called
- Brand
- 4C Labs
- Strain name
- Jokerz
- Medical product name
- Premium JKZ T18
The strain name is what most people call it. The medical product name is what appears on the prescription and the pharmacy label.
Jokerz by 4C Labs, a beta-irradiated medical cannabis flower with 18% THC and <1% CBD. Cultivated in Canada, packaged in United Kingdom. RRP: £6.00/g.
Cannabinoids
Percentage of the dried flower by weight, shown as the range listed for the product
- THC
- 16.2 to 19.8%
- CBD
- <1%
Chemotype: Type I: High THC What is a chemotype?
Terpenes What are these?
The aromatic compounds listed for this product. Amounts are not published, only which are major and minor.
Major
Guaiol
Woody/Rose
Caryophyllene
Spice/Gas
Minor
Humulene
Earthy/Spice
Limonene
Citrus/Sour
Linalool
Floral/Lavender
Geranyl Acetate
Floral/Sweet
Strain info
- Strain
- Jokerz
- Classification
- HybridWhat this means
- Parent strains
- Jet Fuel Gelato (Hybrid) x White Runtz (Hybrid)
Product facts
- Form
- Trimmed Whole Flower
- Irradiation
- Beta-Irradiated
- Grown in
- Canada
- Packaged in
- United Kingdom
- Import status
- Schedule II: Finished Product
Supply chain What the roles mean
The companies named for this product, from grower to pharmacy
- 4C Labs
Brand
Sold under this name
- United Greeneries
Cultivator
Grew it
- 4C Labs
Importer
Brought it into the UK
- Xeal
Packager
Packed it
- 4C Labs
Distributor
Supplies pharmacies
Pack sizes and prices
Listed prices as of March 2026. Pharmacies set their own prices, so check before you order.
| Pack size | Price | Per gram |
|---|---|---|
| 10g | £60.00 | £6.00 |
| 30g | £180.00 | £6.00 |
How much is in one gram
One gram of this flower contains about 162 to 198mg of THC and up to 10mg of CBD.
Worked out from the strength on the label. This is arithmetic, not dosing advice: follow the dose your prescriber gave you.
What patients paid
No one has reported a price for this product yet.
Bought this recently? Tell other patients what you paidSimilar products
If 4C Labs Premium JKZ T18 is out of stock, these are the closest on type, strength and terpenes. That is a comparison of what is on the label, not advice. Only your prescriber can decide whether a different product is right for you, and changing product needs a new prescription.
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THC 16.2-19.8% · CBD <1%
- Similar THC
- Shares caryophyllene
- Also hybrid
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Fruit Cup
THC 16.2-19.8% · CBD <1%
- Similar THC
- Shares caryophyllene
- Also hybrid
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Mimosa Orange Punch
THC 16.2-19.8% · CBD <1%
- Similar THC
- Shares caryophyllene
- Also hybrid
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Reviews
Pricing
per gram, recommended retail price
Discontinued
National availability, may be out of date