E-cigarettes and nicotine pouches (snus) increasingly contain a chemical nicotine equivalent— by the name of 6-methylnicotine (6-MN, metatin)—which may be even more addictive than conventional nicotine. Such products are marketed as ‘nicotine-free’ and are easily available online without age verification.
https://www.naturalscience.org/fr/news/2026/03/smart-fact-14/
