Numbuzin No.5 Vitamin Concentrated Serum Korean Serum Two different types of numbuzin serum, No. 5 Serum brightening, fade dark spots and hyperpigmentation , No. 1 Serum calming acne prone and sensitive skin, So which one is your pick? Lets take a closer look to ingredients in No. 5 Serum, All of them are active ingredients to help brighten dull skin, fade dark spots, and reduce hyperpigmentation to reveal a brighter and glowing No.5 Glutathione Vitamin Concentrated Serum, 1.01 fl oz (30 ml) Numbuzin No. 5+ Concentrated Serum KBeauty Australia