Fracora Human Stem Cell Culture Extract Concentrate 30ml Empty Bottles, Set of 4 These are light-shielding bottles with droppers. They are empty bottles, with no contents. They have not been washed. (Used from new and not used for any other purpose) Convenient dropper type. You can draw up only the amount you need. An empty bottle of Caviar Collagen Concentrate 15ml is also included as a bonus.