New, in sealed box. Kerastase Elixir Ultime hair oil, got it in September 2024. This bottle is refillable, with refill included. You can buy another refill tube after you use it. I do have another ( non-refillable) bottle of the same oil for about a year, and only used less than half so far. The usage depends on your hair length ( mine are below shoulders and I use only a small drop of hair oil, rub it between my hands, and then run it through my hair to add sleekness and shine. It works for smooth combing effect too. The oil aroma is luxurious and nice. It costs $62 on Kerastase website, I am selling with 20% discount. It is an authentic product.