Dropper Caps

MIRON Violetglass stocks a selection of vertical droppers in various shapes and sizes which go hand in hand with our selection of glass bottles. The collection includes dropper caps with an opening diameter varying from 0.7 mm up to 2.0 mm. Dropper caps allow you to dispense liquids with control which makes it the ideal closure for cosmetics & skincare products such as eye drops, food colorings and essential oils. In the same way, the vertical dropper caps come in handy when an exact dosage is required, thus making it the superior closure solution for pharmaceutical products, fragrances or any type of hemp oils.

Select your product

All quantities are rounded to the number of pieces per safe packs.

Series II, III, IIID

The number in the series indicates the shape of the cap and the tamper-evident element of the dropper caps. For instance, II suggests that the closure has a tampered evident ring attached to the closure, and because the cap is made of only one material/mold, it has 4-6 ridges on the side. Series III has a thicker rim and features a more luxurious tampered evidence element. This series is made from multiple molds, which means that a different system of tempered proof is used consisting of retention fingers instead of ridges on the tear strip, making it less easy to manipulate. Series IIID, on the other hand, is entirely the same as III except for the fact that it has a smooth surface.

Type S-I, S-II

S-1 and S-II refer to the length of the air nozzle – being the spout at the bottom of the dropper. When making a selection, it is always advisable to test the performance of this product with your contents, as the substance of your product may be very influential in choosing the right type.

Let’s talk about threads

...But what exactly are threads?

Simply put, threads are the protruding lines curved around the neck of the bottle. They ensure that the matching closure will have a tight fit to protect your natural ingredients from being tampered with or from leakage. The threads size depends on the size of the bottle neck as well as our range of closures. Our bottles and jars as well as the corresponding closures must have matching threads. If in doubt, it is always advisable to contact the sales department.


DIN is the industry standard for dropper bottles in Europe, and DIN18 is the German-based norm. It refers to the standard size of the neck, height and diameter. Dropper caps with a DIN18 threaded closure go hand in hand with any Orion dropper bottle up to 100ml (3 ½- oz) that features the DIN18 thread and a tamper-evident transfer ring. The right choice to ensure product safety.


GPI and GCMI are the US norm of neck finishes and are followed by two numbers written like this: 22/400*. The first number indicates the neck finish diameter and is measured across the outside of the bottle’s threads. The second number refers to the height and thread style. Meaning, the number of threads turns around the neck. Simply match the GPI or GCMI code listed in the product description to purchase the corresponding items.
* Please note that if a bottle has an additional ring in the neck, this may affect the choice of matching closure. For more details, please get in touch with your representative.


PP is also known as polypropylene and falls under the plastic identification code number 5. The material is easily produced and has a high degree of purity. It comes with a range of benefits, so is it difficult to break, lightweight, easily and 100% recyclable. Due to its properties, PP is suitable for various applications, including food, cosmetic, and natural healing product packaging.

At MIRON Violetglass we ensure that our closures always fit the corresponding bottles and jars. However, it can sometimes be a bit of a challenge to find the right closure which complements the needs of your natural ingredients. We are always happy to answer any questions you may have and to become a part of your products journey.

For more information about threads, visit our Neck Finishes Explained guide.