I would like to point out that RJ Reynolds could choose to manufacture its cigarette brands from pure tobacco leaf grown in the US under strict pesticide regulations
Texas Tobacco 21 went into effect on September 1 August 23, 2019 On September 1, 2019, Texas Tobacco 21, the law that raises the minimum legal sales age for tobacco from 18 years to 21 years, officially went into effect
Islamic studies Al-Magrib Institute says: It is impermissible to use e-cigarettes because of their harmful nature, and in addition they also break the fast due to the ingestion of nicotine as well as the manner of its ingestion, identical to the rulings applied to normal cigarettes. According to Islam Question & Answer website Islamqa.info, vapes which don't actually contain any harmful substances and consist of natural flavouring are not considered haram
Another exchange of letters in January 1930 caught my eye
E-cigarettes, smoking and health - a recent review by CSIRO into the use and health impacts of e-cigarettes