Fairies are mythical creatures from folklore, and they don't exist in the real world. There's no scientific evidence to suggest that fairies are real, and no one has ever captured or bottled one.
The idea of bottled fairies is likely a product of imagination and storytelling, often used in fantasy stories and literature.
Perhaps you're thinking of a specific story or piece of media where bottled fairies are a concept? If you tell me more about what you're interested in, I can help you explore that further!