18-DIN Black Tamper-Evident Vertical Dropper Cap

For a production-intent package, the 18-DIN Black Tamper-Evident Vertical Dropper Cap (Part 113400) offers a defined dropper closure rather than a generic starting point. Confirm thread fit, torque, liner performance, leakage resistance, and opening behavior on production containers. Pipette reach, bulb recovery, graduation needs, and seal integrity should be specified around the intended dose. The format can serve serums, essential oils, liquid supplements, extracts, and tinctures.