Obagi C10 Serum 26ml Large size. (Reference: Retail price 7700 yen) Purchased in late June 2025 at a drugstore. Only the serum, no box or accessories. Used 2-3 times. Please check the remaining amount and the color of the serum in images 2 and 3. *Images other than the 3rd image have been slightly brightened. The 3rd image is unprocessed. Total weight including the container: approximately 76.3g (image 4) Stored in a refrigerator at home. Please understand that this is a used item stored at home.