Source · study Topical nicotinamide for seborrheic dermatitis: an open randomized study Primary source Publisher:Journal of Dermatological Treatment (Fabbrocini G, 2014) Source type:Journal · study Last checked:2026-11-10 URL: https://doi.org/10.3109/09546634.2013.814754 Pages that cite it Evidence: In an open randomized, vehicle-controlled trial of 48 people with mild-to-moderate facial seborrheic dermatitis, 4% nicotinamide cream once daily for 12 weeks reduced the combined erythema/scaling/infiltration score by 75% from baseline versus 35% with the vehicle (p<0.05).