The Public Health Agency of Sweden
Updated 26 October 2021

Surveillance of liquids for electronic cigarettes

The Public Health Agency of Sweden has analysed ingredients in liquids for e-cigarettes.

Conclusions

None of the tested liquids contained the four chosen prohibited substances caffeine, taurine, vitamin E or vitamin E-acetate. The liquids had the correct concentration of nicotine as reported to the agency and as indicated on the packaging.

Regulation

According to the Decree (2019:223) on tobacco and similar products nicotine-containing liquids must not contain:

  • nicotine in excess of 20 milligrams per millilitre
  • vitamins or other additives that give the impression that an electronic cigarette or refill container has a health benefit or presents reduced health risks,
  • caffeine, taurine or other additives or stimulant compounds that are associated with energy and vitality,

Market surveillance in cooperation with the Swedish Medical Products Agency

100 randomly selected liquids with nicotine (3 mg/ml to 20 mg/ml) from different manufacturers and importers was purchased from Swedish web stores. The 24 concerned manufacturers and importers were informed about the surveillance.

Laboratory analyses by the Swedish Medical Products Agency

Presence of nicotine (CAS 54-11-5), caffeine (CAS 58-08-2), taurine (CAS 107-35-7), DL-alpha-tocopherol (CAS 10191-41-0) and vitamin E acetate (tocopherol acetate, CAS 7695-91-2) were analysed for using Identity nuclear magnetic resonance (NMR) assay (S.O.P. 00400) and Identity liquid chromatography-mass spectrometry (LC-MS) assay (S.O.P. 01271). The concentration of nicotine was analysed using NMR assay (S.O.P. 00800).

Results

No tested products contained any of the analysed prohibited substances. All tested products contained the correct concentration of nicotine as reported to the Public Health Agency of Sweden and as indicated on the packaging. Some products products did not comply with the labelling and packaging requirements.