This is a brand new, unused item that I recently purchased from the official store. PDRN Hyaluronic Acid 100 Serum Product Description: This is a moisturizing serum that contains PDRN, hyaluronic acid, and collagen. Applying Korea's first 100% smart capsule technology, it penetrates deep into the skin with over three times the penetration power compared to regular liposomes, thoroughly hydrating the skin and improving its condition. This high-performance essence, the "Water Glow Bomb Serum," moisturizes the skin in just 3 seconds, boosts the skin's fundamental strength, and improves imbalanced moisture levels. Thank you for looking.