The use of electronic cigarette by teens is rising, threatening Juul and others

Juul's dollar sales jumped 769% in the past year, according to the latest Nielsen data compiled by Wells Fargo analyst Bonnie Herzog. The San Francisco company sold $ 1.48 billion worth of vape kits and nicotine pods in the 12 months ending September 8th, nearly 60% of the $ 2.5 billion for whole category.

Juul's sales boosted the e-cigarette market enough to allow Herzog to increase its sales forecast to $ 6.6 billion from its previous estimate of $ 5.5 billion. Juul was valued at about $ 16 billion after raising $ 1.25 billion in his latest cycle, according to someone close to the record.

Although these companies hold e-cigarettes, they may not be as at risk because most of their sales are still cigarettes. According to Nielsen, the other four companies targeted by the FDA sold $ 940.3 million worth of products in the past year.

With a market capitalization of 80.76 billion pounds, British American Tobacco's e-cigarettes sales grew 7.8% over the last year, reaching $ 402.5 million. Altria, with a market capitalization of $ 117.4 billion, saw its electronic cigarette sales rise 37.5% to $ 234.2 million.

Imperial Tobacco's dollar sales increased 16.2% over the last year to $ 195.4 million. The company has a market capitalization of £ 24.73 billion. Logic, owned by Japan Tobacco, saw its sales fall by 10.3% over last year, to $ 108.2 million. The market capitalization of Japan Tobacco is 5.24 billion yen.

However, regulatory repression could threaten the growth of the industry. However, Gottlieb told CNBC that his door was "very open" to businesses that wanted to introduce e-cigarettes with new features that make children less likely to use them.

Flavors, including cream and mint, accounted for about 90% of Juul's sales in recent data. This leaves the Juul vulnerable to regulators' warnings about the withdrawal of flavored products from the market.

Yet Juul is already looking to expand abroad. It is already launched in Israel, England, Scotland and Canada. It also monitors other international markets, including Asia.