Niacinamide Blemish Care Serum 50g, ONE THINGPRODUCT INFORMATION A brightening serum that helps reduce the appearance of dark spots and blemishes. Contains 5% Niacinamide and Citrus Unshiu Peel ingredients to help suppress melanin level and brighten up dull complexion. Enriched with tea tree leaf extract and 7 types of vitamins to offer revitalizing care for even sensitive skin. Lightweight texture that is absorbed by skin quickly and does not leave a sticky feeling behind.