This serum contains PDRN and 5 types of peptides to support skin firmness and elasticity. - Brand: medicube - Product Name: PDRN PINK PEPTIDE SERUM - Volume: 30ml - Ingredients: PDRN (Sodium DNA) 1% / 5 Types Peptides Complex I am selling this because it didn't suit my skin after using it a little. I don't think there's much difference in the amount compared to a new one. No box, purchased about a month ago. Please refer to the photos if you are concerned about the remaining amount.