These are opened bottles and most are just past the best by date, but they've been stored in a wooden box in my closet and had very limited exposure to air so they should actually be fine for a few more years for general use. All were opened to test the smell even if I didn't use them. Please read the following descriptions carefully to find the percentage remaining in each bottle as well as the expiration dates . Ylang Ylang - 80+% - exp. 04/23 - retail $53.33