Transforming the look of dull, lacklustre skin, the Numbuzin No.5 Vitamin Serum calls upon powerful K-beauty actives to visibly brighten and balance. Powered by vitamins, glutathione, tranexamic acid and niacinamide, this multitasking formula reduces the appearance of dark spots and discolouration to support a more unified tone. Meanwhile, probiotic bifida ferment lysate and panthenol come together to nourish the skin barrier and prevent moisture loss for a radiant, refreshed finish.