An eyelash extension system includes an extension strip with a backing and a plurality of eyelash extensions. Each extension has a proximal end and a distal end. The proximal end of each extension is joined to the backing and distal end of each extension extends away from the backing. The system also includes an extension tray with at least one curved extension attachment surface to receive the extension strip such that adhering the extension strip to the curved extension attachment surface spreads the distal ends of the extensions farther apart than the proximal ends of the extensions joined to the backing.