FlowerIndica HybridOut of Stock
Four20 Pharma

Four20 Pharma NLS T23

This is the name on the prescription.How to read this nameStrainNorthern Lights

Four20 Pharma NLS T23 is a medical cannabis flower from Four20 Pharma, available in the UK on prescription only. Its strain is Northern Lights (indica hybrid). Its label gives THC 20.7 to 25.3% and CBD <1%. Its list price is £7.50 a gram; pharmacies set their own prices.

20.7 to 25.3%THC
<1%CBD

Recommended price

£7.50/g

What this product is called

Strain name
Northern Lights
Medical product name
NLS T23

The strain name is what most people call it. The medical product name is what appears on the prescription and the pharmacy label.

Northern Lights by Four20 Pharma, a gamma-irradiated medical cannabis flower with 23% THC and <1% CBD. Cultivated in Canada, packaged in United Kingdom. RRP: £7.50/g.

Cannabinoids

Percentage of the dried flower by weight, shown as the range listed for the product

THC
20.7 to 25.3%
CBD
<1%

Chemotype: Type I: High THC What is a chemotype?

Strain info

Strain
Northern Lights
Classification
Indica HybridWhat this means
Parent strains
Afghani Landrace (Indica) x Thai Landrace (Sativa)
Every Northern Lights product, from all brands

Product facts

Form
Trimmed Whole Flower
Irradiation
Gamma-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

  1. Brand

    Sold under this name

    Four20 Pharma

  2. Cultivator

    Grew it

    Northern Green Canada

  3. Importer

    Brought it into the UK

    Curaleaf® Laboratories

  4. Packager

    Packed it

    Curaleaf® Laboratories

  5. Distributor

    Supplies pharmacies

    Curaleaf® Laboratories

Pack sizes and prices

Listed prices as of March 2026. Pharmacies set their own prices, so check before you order.

Pack sizePricePer gram
10g£75.00£7.50
30g£225.00£7.50

How much is in one gram

One gram of this flower contains about 207 to 253mg 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 paid

Similar products

If Four20 Pharma NLS T23 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.

Reviews

Pricing

£7.50

per gram, recommended retail price

Out of Stock

National availability, may be out of date

Find this in stock
What would this cost a year, with clinic fees?

Brand

Four20 Pharma

View all products