Juul ramped up nicotine levels, and competitors followed, study says CNN JUUL2 Juul Labs Science The patented nicotine salt content in one 5% JUUL pod is equivalent to the nicotine in a pack (to 1.5 packs) of cigarettes. Yet, because the JUUL looks like a computer flash drive, Differences in flavourant levels and synthetic coolant use between USA, EU and Canadian Juul products Tobacco Control