Glass bottles are commonly chosen for essential oil packaging. Check that the cap, insert and any dropper components tolerate the particular oil. Use a tested closure and storage arrangement that protects the contents during handling and distribution.

An insert can restrict the bottle opening and help control the flow of a liquid. Its performance depends on the insert design and oil thickness. Test the assembled container to check the dispensing rate and secure fit.

A 10 ml glass bottle can suit a small serum pack when the closure handles its consistency. Several dropper designs are listed in this collection. Check the fill volume, application method and label space using the exact sample bottle.