HYPER LINK SERUM, 55ml, can be used as a leave-in treatment. I've only used 1-2 pumps from the bottle. I'm selling it for a little less than the retail price. The box is not included. - Brand: MEDULLA - Product Name: HYPER LINK SERUM - Contents: 55ml - Made in Japan - How to use: Leave-in treatment ⚠️ Notes and Cooperation ⚠️ Regarding the condition of the product: Many of the items I sell have been used at least once. Therefore, please understand that used items may show signs of use. I take photos under fluorescent lights, but the color of the product may look slightly different depending on your environment. About shipping: I will generally ship within 24 hours. However, depending on my personal schedule, I may be able to ship immediately, or it may be slightly delayed. Please understand this before purchasing. About purchasing: You can purchase without leaving a comment. The first person to buy the item will be given priority, even if they purchase while messages are being exchanged. Thank you for looking.