A select combination of highly concentrated niacinamide, panthenol, biotin, and vitamin B12 gives a visibly more even complexion. Niacinamide refines pores, smooths the skins surface, and corrects light-induced skin changes such as hyperpigmentation and redness. This niacinamide serum is the perfect addition to any skincare routine and can be used flexibly. Instructions for use: Apply to cleansed skin morning and evening, followed by a face cream. Alternatively, 2-3 drops can be combined with your final skincare routine.