Eyelash Serum - EGUTAM Purchased at an eyelash perm salon in November 2025 (Reiwa 7) Used for about a month. Some scratches and dirt, but still usable. I think about two-thirds of the product remains. It makes a rattling sound when shaken. This product has been very effective. If you'd like to try it, please do! *Please understand that this is a used item before purchasing.