Does melanin protect your skin from cigarette smoke chemicals?

NCT ID NCT06020248

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at whether the amount of melanin in your skin changes how much nicotine from thirdhand smoke gets into your body. Researchers will measure nicotine in blood and urine after skin exposure. The goal is to understand how skin pigment affects chemical uptake, not to treat any disease. Healthy nonsmokers aged 18-50 with very light or very dark skin can join.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Zuckerberg San Francisco General Hospital

    RECRUITING

    San Francisco, California, 94110, United States

    Contact Email: •••••@•••••

    Contact