Amazon.com: numbuzin No.5 Glutathione TXA Dark Spot Ampoule, Targeted Tone Care Concentrate for Dark Spots & Uneven Skin, Tranexamic Acid, Niacinamide, Vitamin Tree Water, Korean Skincare, 10.7g : Beauty & Personal Care No.5 Glutathione Vitamin Concentrated Serum, 1.01 fl oz (30 ml) Numbuzin No.5 Vitamin Concentrated Serum Numbuzin No.5 Vitamin Concentrated Serum 30ml, Numbuzin No.5 Vitamin Concentrated Serum is an intensive Vitamin ampoule that brightens skin and reduces the appearance of hyperpigmentation. It contains