Thank you for viewing. I am selling this because I purchased a set, but I have accumulated other serums. Would you like to try it? Dr.G Revital Enhancer Ampoule 10mL x 4 bottles New, unused Expiration date: 20270812 As shown in the third photo, there is a small stain on the dropper. No comment, immediate purchase is welcome. Thank you for your consideration. #DrG #EGF