This is a serum specifically designed for pores. I purchased it from the official Medicube website, but I had a reaction to it, so I'm selling it. It's new, unused, and unopened. If you're concerned about authenticity, I can provide proof of purchase. - Brand: medicube - Product Name: ZERO PORE ONE DAY SERUM - Volume: 30ml - Ingredients: AHA + BHA + PHA 15.2% / ALLANTOIN Thank you for looking.