Neither Google nor Meta will carry their ads, so a handful of UK online retailers are building a new category on organic search, long product pages and, lately, ChatGPT.
Patients prescribed cannabis flower in the UK are told by their clinics to vaporise it rather than smoke it. The clinic writes the prescription and a pharmacy dispenses the flower, but neither of them sells the device, which costs anywhere from £27 to more than £400 depending on what the patient picks. That gap is being filled by a small group of specialist online retailers, a category that barely existed before cannabis-based medicines became available on prescription in November 2018.
How many patients there are depends on who’s counting, since there’s no official UK-wide register. A Cannabis Industry Council summary of research by Plantz and Cannavec.ai, published in May 2026, puts active patients at 60,000 to 75,000 as of mid-2026, with 75,000 to 90,000 people prescribed at some point during 2025. NHS Business Services Authority figures for England show private prescriptions of unlicensed cannabis medicines rising from 282,920 items in 2023 to 659,293 in 2024. Every flower patient among them needs a device, and then screens, spare batteries and a grinder over the years they own it.
What the shops look like
The retailers are mostly Shopify stores run by small teams, with ranges built around a dozen or so manufacturers. Storz & Bickel, the German company behind the Volcano and the Mighty, sits at the top of most ranges, with its portable Venty at around £299 and the desktop Volcano Hybrid at around £385. Below that come Arizer, TinyMight and Chinese brands such as XMax and Anix, with prices from £27 up to about £300.
The entry level matters more here than in most categories. A newly prescribed patient usually hasn’t owned a vaporizer before and doesn’t want to spend £300 finding out whether they get on with one. At The Herbal Vaporizer Store, the best seller is the XMax V4 Pro, an £89.99 convection device with a removable 18650 battery, a 100°C to 220°C temperature range and a colour screen, and in one fortnight in September it made up 40% of the store’s gross sales. UK search data backs up the price sensitivity. Searches that include a price only register in any volume at two points, under £50 and under £100, so the specialists tend to merchandise those two bands and little else by price.
Concentrates sit at the other end. Devices built for cannabis extracts rather than flower are sold by the same specialists and carry the highest prices in the category. Herbalize Store, a UK specialist, gives Puffco vaporizers their own collection page, running from the £140 Pivot up to the £425 Peak Pro, with glass attachments and travel pieces from £54 to £199 alongside. These sell to experienced buyers rather than new patients, and the attachments bring the repeat purchases that the devices themselves, bought once every few years, don’t.
The channels that aren’t open
What makes the category unusual for anyone used to launching an online shop is that the two channels most retailers start with are closed. Google’s ads policy bars “products designed to simulate tobacco smoking”, which in practice catches herbal vaporizers, and Meta’s advertising standards prohibit ads for vaporizers and related accessories. There’s no Shopping feed, no paid social and no retargeting, and the same rules close those channels to neighbouring categories such as CBD and e-liquids.
So the specialists trade on organic search, email and, increasingly, AI assistants. Product pages run long by retail standards, often 1,500 to 2,000 words, because they’re doing the job a review site would otherwise do, and the stores publish their own comparisons and model reviews, Venty against Mighty+ against Crafty+, say, written by the people who sell them. At The Herbal Vaporizer Store, visits referred by ChatGPT grew from around 20 a fortnight in late July to more than 150 in the second half of September, with 13 of those visitors going on to buy. That’s still small next to Google, but it arrived without any ad spend, and it tends to land on the pages that state the heating method, battery life and price in plain terms.
What the rest of retail can take from it
Two things stand out. The first is that a category with no paid channels is forced into the search and content work that better-funded retailers put off, and the result is traffic that carries on arriving when nobody is paying for it. The second is where the repeat business lives. A patient who buys an £89.99 device in October will be back for replacement screens and a spare battery before the year is out, and the accessories added to that order carry a better margin than the device did. That second visit is where the specialists make their money, and it’s the one part of the category the ad platforms were never going to help with anyway.
Terry Clark is the Publisher and Content Director of 365 Retail, with more than a decade of experience covering retail design, technology innovations, store openings and the wider retail industry. He also works closely with leading retailers, suppliers, agencies, events and industry awards across the UK.
