1/2 oz. (15 ml) cobalt blue glass boston round dropper bottle, 18 mm (18-400) neck finish, packaged with a black child resistant polypropylene (PP) plastic dropper and 66 mm glass pipette. Boston rounds have a rounded shoulder and rounded base, making them popular in personal care packaging but also appropriate for applications in other industries. The dropper has a glass tube and rubber bulb ideal for dispensing essential oils, skincare and chemical products.
- Round shoulder and base
- Iconic and classic shape
- Made of Cobalt Blue glass to filter UV light
- Strong and heavy bottle
- Black Dropper with 66mm glass pipette
Cobalt Blue Glass - Cobalt blue glass provides moderate light protection to light-sensitive products and is suitable for essential oils, natural cosmetics, food products, extracts, and select pharmaceutical drugs. Cobalt oxide is used to create the blue glass. A reduced form of blue glass (blue-green glass) is rare but can be made by eliminating the surfer and using only iron and carbon. The Cary Company carries cobalt blue glass packers, oblongs, and boston rounds.
This information has been provided as a general guide. It is the customer's responsibility to select the proper container for product and application compatibility.