SOME BY MI Yuja Niacin toner brightens skin in just 30 days. Formulated with 90% yuja extract and 5% niacinamide, this clinical solution targets dull skin and uneven skin tone. This toner revitalizes with yuja ingredients and twelve vitamins for a bright, translucent complexion. It's dermatologist-tested and non-comedogenic, making it suitable for daily use.