Supplementary Material for: Severe Nodulocystic Acne Induced by Mercury-Containing Skin-Whitening Cream: A Case Report and Call for Public Awareness

Introduction
Skin-whitening products, often containing mercury, are used worldwide for cosmetic purposes but pose significant health risks. Mercury, a melanotoxin, can cause severe dermatological, renal, and neurological complications.

Case Presentation
We report the case of a 27-year-old woman who developed severe nodulocystic acne due to chronic use of a mercury-containing skin-whitening cream. Treatment with isotretinoin and prednisolone led to significant improvement within three months.

Conclusion
This case underscores the need for public awareness and stricter regulatory actions to prevent mercury-related health hazards from skin-whitening products.