numbuzin No. 5 Vitamin C Glutathione Serum 30ml Contains high concentrations of glutathione, vitamins, and niacinamide. For skin tone, pigmentation, dullness, and blemish care. I purchased this from the official Amazon store about three months ago. I used it about 5 times. I am selling it because it didn't suit my skin. I plan to ship it in the outer box. Please note that there is no inner seal.