Bigger, stronger and cheaper: growth in e-cigarette market driven by disposable devices with more e-liquid, higher nicotine concentration and declining prices.

Objective: Given the evolving changes in the disposable e-cigarette market, we explore patterns of sales in the USA by e-liquid volume capacity, nicotine strength and real sales-weighted average prices by both e-cigarette unit and volume of e-liquid.

Methodology: We used NielsenIQ retail scanner data from January 2017 to September 2022 to examine changes over time for average product volume capacity in millilitres, nicotine strength (%) and both sales-weighted average price per disposable unit and per millilitre of e-liquid for each 4-week period.

Results: Among disposable e-cigarettes sold between January 2017 and September 2022, average volume capacity increased 518% from 1.1 mL to 5.7 mL and average nicotine strength increased 294% from 1.7% to 5%. Sales-weighted average price per disposable unit and millilitres of e-liquid both remained relatively constant until January 2020. From January 2020 through September 2022, average unit prices increased 165.7% from US$8.49 to US$14.07, while the average price of 1 mL of e-liquid decreased 69.2% from US$7.96 to US$2.45.

Conclusions: The current regulatory regime around e-cigarettes has resulted in disposable e-cigarette manufacturers providing consumers with bigger, cheaper disposable e-cigarettes that come in increasingly higher nicotine strengths. Tobacco policy recommendations such as restricting e-liquid capacity and minimum price laws as well as regulations on product characteristics that affect nicotine emissions and delivery such as nicotine strength, nicotine output, device power, and puff duration should be considered in regulating the e-cigarette market.