JUUL vs. cigarettes: which delivers nicotine faster?

NCT ID NCT04053868

First seen Nov 01, 2025 · Last updated May 03, 2026 · Updated 17 times

Summary

This study looked at how nicotine enters the body when people use JUUL e-cigarettes compared to smoking regular tobacco cigarettes. Seventeen healthy adults took part, and researchers measured nicotine levels and heart rate after each product. The goal was to understand the differences, not to treat or cure any disease.

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Contacts and locations

Locations

  • University of California, San Francisco

    San Francisco, California, 94143, United States

  • Zuckerberg San Francisco General Hospital

    San Francisco, California, 94110, United States

Conditions

Explore the condition pages connected to this study.