Imperial Brands Releases Study: Adult Smokers Reduced Cigarette Consumption After Using blu E-Cigarettes, with Flavours Playing a Key Role in Switching

Jun.17.2025
Two new studies from Imperial Brands show that adult smokers significantly reduced their cigarette use after switching to blu vapes, with flavors playing a key role.

[By 2Firsts] According to a study shared with 2Firsts by Imperial Brands, the company has carried out two new behavioural studies into its vape product, blu, showing how adult smokers use it in their daily lives to reduce – or even replace – cigarettes.

 

Imperial Brands’ behavioural scientists tracked adult smokers who had no plans to quit at the study outset, and found the following:

 

● After just one week, significant numbers of participants had shifted from smoking cigarettes to vaping blu – with an average fall in smoking rates of almost 29%.

 

● Vaping blu led to a sharp drop in how many cigarettes were smoked per day (an average of almost 30% across both studies).

 

● Authentic fruit and mint flavours were a crucial part of subjects’ switching journeys, helping them transition from smoking cigarettes to vaping blu – in one of the studies, almost 29% of subjects exclusively used fruit flavours.

 

● Flavours also encouraged subjects to continue vaping and not return to cigarettes – with 60% in one study saying they planned to purchase blu in the future because they liked the flavours offered.

 

● Longer term follow-up – around six months later – revealed that between a third and 40% of subjects had either significantly reduced smoking cigarettes, or even stopped completely.

 

Imperial Brands Releases Study: Adult Smokers Reduced Cigarette Consumption After Using blu E-Cigarettes, with Flavours Playing a Key Role in Switching
Study Results Released by Imperial Brands | Image Source: Imperial Brands Science

 

Elizabeth Clarke, Scientific Substantiation & Engagement Lead at Imperial Brands, commented:

 

“This latest consumer scientific research demonstrates blu’s exciting potential to help adult smokers either substantially reduce, or completely stop, using cigarettes. This is potentially extremely positive news for public health.

 

However, we’ve only scratched the surface of the rich insights from these studies. Scientists are currently analysing the data to find out more about individuals’ switching journeys.

 

The intention is to gain an even better understanding of consumer behaviour to inform future innovation pipelines and support adult smokers in their journeys to give up cigarettes.”

 

Thomas Nahde, Head of Harm Reduction & Engagement at Imperial Brands, added:

 

“Consumer preferences, next generation products, and the tobacco harm reduction debate itself continue to evolve at pace – and we are committed to ensuring the accompanying scientific research does too.

 

These behavioural studies demonstrate actual harm reduction. We’re excited to use the results to show that responsibly manufactured and marketed vapes – including blu – can help make a positive contribution to public health.”

 

Both studies are set to be submitted for publication in the peer-reviewed academic literature later this year. The study findings will also be presented in more detail at the Global Forum on Nicotine 2025 in Warsaw (19–21 June).

 

Imperial Brands states that it is committed to making a meaningful contribution to the public health concept of tobacco harm reduction (THR) through its next generation products (NGP).

 

The company previously conducted in-market research demonstrating how its heated tobacco system, PULZE & iD, helped adult subjects either substantially reduce – or even completely stop – smoking cigarettes.

 

A video of the in-market study featuring PULZE & iD is available online

 

The studies were conducted in collaboration with Russell Burnett Research and Consultancy Ltd (RBRC) and the Centre for Substance Use Research Ltd (CSUR).

 

Christopher Russell, Director of Russell Burnett Research and Consultancy, who led the studies, said: 

 

“The available evidence suggests that switching from cigarettes to e-vapor products can substantially reduce a person’s exposure to toxins that can cause cancer, lung disease, and heart disease. Results from these two studies demonstrate the potential for regular use of disposable or rechargeable blu vaping products for six weeks to help around 4-in-10 adults to either completely stop smoking or to cut the number of cigarettes they smoke each day by at least half. Indeed, some people cut their daily smoking in half within the first seven days of using blu products. Overall, these results indicate blu vaping products can make an important contribution to reducing adult smoking rates and the associated health consequences.”

 

Neil McKeganey, Director of Centre for Substance Use Research, said: 

 

“These studies were pioneering in a key respect. We gave each of our study participants a pre-funded personal debit card that they could use for six weeks solely to purchase blu vaping products from stores in their communities any time they wished. Participants were then completely free to choose whether they used these products, when and for how long they used them, and whether they continued to use these products beyond the study period. Our research showed that in the real-world circumstances of these individuals’ lives, blu vaping products were not only satisfying and appealing, but were an effective tool in enabling them to quit smoking.”

 


 

Note 1: 421 subjects; product was blu bar. Study 2: 429 subjects; product was blu 2.0. Research took place in London, UK and lasted 6 weeks, with follow-up at 24 weeks.

 

Note 2: In week 1 of the studies, the combined number of cigarettes smoked fell from a mean of 83.4 to 59.5 per participant.

 

Note 3: For the purposes of the studies, ‘substantial reductions’ was defined as a >50% reduction in cigarettes smoked per day.

Special Report|CrossBar's High-Puff Vapes Draw Attention on Pennsylvania's 163-Product Directory as Link Between Earlier 1.3mL PMTA Filings and New 13mL Products Remains Unclear
Special Report|CrossBar's High-Puff Vapes Draw Attention on Pennsylvania's 163-Product Directory as Link Between Earlier 1.3mL PMTA Filings and New 13mL Products Remains Unclear
Pennsylvania began enforcing its electronic nicotine delivery system directory restrictions on October 19, 2026. Among 163 product listings recorded before enforcement, four CrossBar 20K disposables stood out with 13mL capacity, advertised puff counts of up to 20,000 and a flattened design distinct from conventional pod systems and compact disposables. Historical records identify earlier 1.3mL CrossBar products associated with Romo LLC, while newer 13mL products appeared in several state directories beginning in 2025 under entities including Blue Nine LLC. PMTA compliance expert Mr. K identified amendments and application ownership transfers as possible regulatory mechanisms, although neither has been confirmed in this case. Separately, Reynolds' $7.5 million acquisition of 16 PACHA products and related assets illustrates the commercial value of products linked to historic PMTA submissions.
Special Report
Oct.22
2Firsts Hosts China Market Forum at InterTabac as Global Industry Attention to China’s Tobacco Sector Deepens
2Firsts Hosts China Market Forum at InterTabac as Global Industry Attention to China’s Tobacco Sector Deepens
On September 16, 2Firsts hosted a China-focused industry forum during InterTabac in Dortmund, bringing together more than 30 participants from North America, Europe, India, South Korea and other markets. The session covered traditional tobacco, next-generation products, exports, technology, regulation and supply chains, while examining how China’s tobacco sector operates, where its transformation may be heading, and why its growing role matters increasingly to companies across the global tobacco and nicotine industry.
Sep.21
Italy Proposes Earlier Vape and HTP Tax Hikes, New Rules for E-Liquid Pricing, Exclusive Deals and Distribution
Italy Proposes Earlier Vape and HTP Tax Hikes, New Rules for E-Liquid Pricing, Exclusive Deals and Distribution
Italy's proposed 2027–2029 budget would bring forward scheduled tax increases for e-cigarette liquids and heated tobacco products from January 1, 2028, to July 1, 2027. The consumption tax coefficient for nicotine-containing e-liquids would rise from 20% to 22%, that for nicotine-free liquids and applicable flavorings from 15% to 17%, and the heated-tobacco coefficient from 41% to 42%. The bill would also introduce official retail price schedules for e-liquids, restrict exclusive agreements between retailers and suppliers, and limit single-brand-dominated displays, sales incentives and bundled offers. Importing, authorized warehousing and retailer sourcing arrangements would also change. The proposals remain subject to parliamentary approval and subsequent implementing regulations.
Regulations
Nov.04
How Many Nicotine Pouch Factories Does Europe Need? 2Firsts Interviews AIRSCREAM on the OEM Market
How Many Nicotine Pouch Factories Does Europe Need? 2Firsts Interviews AIRSCREAM on the OEM Market
At InterTabac 2026, nicotine pouch growth was visible not only in brands but across equipment, raw materials and OEM manufacturing. 2Firsts interviewed AIRSCREAM commercial head Steve Moore on how many pouch factories Europe may ultimately need and where manufacturers can differentiate, from formulation and flavour to pouch materials, production consistency and customer service. The category continues to expand, but questions remain over future capacity, consolidation and the long-term structure of the supply chain.
Sep.18
Indiana Halts Sales of Elf Bar, Lost Mary, MR FOG and iJOY Vapes Under Foreign-Adversary Rules; Some Products Return After Compliance Filings
Indiana Halts Sales of Elf Bar, Lost Mary, MR FOG and iJOY Vapes Under Foreign-Adversary Rules; Some Products Return After Compliance Filings
Indiana's Alcohol and Tobacco Commission (ATC) ordered tobacco certificate holders in September to remove certain vaping products marketed under Elf Bar, Lost Mary, MR FOG, iJOY and other brands from inventory under the state's foreign-adversary product law. The agency later listed 257 MR FOG products and 77 Lost Mary product entries as lawful for sale. The Lost Mary revision expressly stated that compliance evidence had been received for 20 additional products. 2Firsts compliance expert Kurt said potential filings could include e-liquid and ingredient-origin records, U.S. nicotine-analog supply-chain documentation and FDA premarket application status.
Regulations
Oct.08
Product | Philip Morris Japan Teams Up With Renowned French Audio Brand DEVIALET for Limited-Edition IQOS Priced 60% Above Standard Model
Product | Philip Morris Japan Teams Up With Renowned French Audio Brand DEVIALET for Limited-Edition IQOS Priced 60% Above Standard Model
Philip Morris Japan (PMJ) launched the limited-edition IQOS ILUMA i PRIME Soundsorial Model in collaboration with French audio brand DEVIALET on October 1, 2026. Featuring sound-wave patterns, a silver-and-black finish and a gradient holder, the heated tobacco device is priced at JPY 15,980, including tax, and is available at four IQOS stores in Japan. According to Japanese media citing a PMJ representative, about 1,900 units were allocated to the Japanese retail market. A separate Soundsorial Collection, combining the device with DEVIALET Gemini II earbuds, includes 440 sets allocated to Japan for a membership prize draw.
product
Oct.23