Vitamin B3 Face-Off: pill or cream for Sun-Damaged skin?

NCT ID NCT07049068

First seen Nov 01, 2025 · Last updated May 15, 2026 · Updated 28 times

Summary

This study tested whether taking nicotinamide (a form of vitamin B3) as a pill or applying it as a cream works better for reducing precancerous skin spots called actinic keratoses on the face. 74 adults with at least three spots were randomly assigned to one of the two treatments for six months. The goal was to see which method more effectively lowers the number of spots and helps prevent skin cancer.

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Contacts and locations

Locations

  • Programa de Pós Graduação Ciencias Médicas UFRGS

    Porto Alegre, Rio Grande do Sul, 90035003, Brazil

Conditions

Explore the condition pages connected to this study.