09 Aug 2017 --- Nicotinamide, a form of vitamin B3, has the potential to prevent melanoma in high-risk individuals, according to a review published in the Photodermatology, Photoimmunology & Photomedicine review. Strategies for skin cancer that prevent the need for chemotherapy are extremely important, especially during a time of aging populations and increasing rates of melanoma and non-melanoma skin cancers worldwide, notes the study. The use of nicotinamide, therefore, presents an interesting option for preventing the most dangerous form of skin cancer in the future. The cost of nicotinamide is approximately US$10 per month if taken at 1g per day as recommended.