Green Glass Bottle, Black Tamper Evident Safety Cap & Dropper 30 ml

Glass bottle, green, black safety cap, 30 ml

An assembled 30 ml medicine bottle with a dropper insert and cap, ready to fill and close. The green glass partly filters the light reaching the contents, so it suits facial serums, oil blends, tinctures and concentrates that are dispensed drop by drop. The whole set is declared suitable for contact with cosmetic products.

The dropper insert in the neck releases the contents gradually and the safety cap holds it in place. This combination works well for active oils, blends with essential oils or alcohol extracts, where you want to control both the amount dispensed and the closure.

What the set includes

• Glass medicine bottle, green, 30 ml – the body of the packaging with an 18/410 neck finish, into which the dropper insert is pressed.
• Plastic dropper insert, short – a clear insert made of PP. It is pressed into the neck of the bottle and the contents flow out drop by drop when the bottle is tilted or gently tapped.
• Plastic safety cap, black – a smooth closure that is screwed onto the thread over the dropper insert and holds it in place.

What it is suitable for

A volume of 30 ml corresponds to a common pack size for a facial serum or face oil that is used up within a few months. The dropper insert dispenses approximately the same amount each time, which you will appreciate with concentrated products where a few drops are enough. It is equally suitable for cuticle oil, beard oil, herbal tinctures or blends of essential oils in a carrier oil.

Aqueous solutions and hydrosols can also be filled into a dropper bottle, but thin liquids flow out of the dropper faster than oils. For products with a lower viscosity, it is worth testing the dispensing with the finished formulation before you fill a whole batch.

Nominal and total volume

The nominal volume is the amount the packaging is designed for in normal filling, in this case 30 ml. The brimful volume is the physical capacity of the bottle up to the top of the neck. The difference between them leaves room for the dropper insert, which takes up part of the neck once pressed in, and for the expansion of the contents with changes in temperature. For this reason, fill only up to the nominal volume. If you filled it to the brim, the dropper insert would push the contents out and the cap would not seat tightly.

Good to know

Before the first filling, wash the bottle, dropper insert and cap, disinfect them with isopropyl alcohol or ethanol and leave them to dry completely. Residual water in the dropper insert would get into an anhydrous oil and reduce its stability. Follow the same procedure for repeated use. After each cycle, it is worth checking the dropper insert and cap for cracked or deformed plastic.

Green glass filters part of the incident light, but it is not complete protection. Oils sensitive to oxidation and products with vitamin C or retinoids should be stored away from direct sunlight, even in a green bottle. When you need to protect the contents from light more effectively, choose amber glass.

The dropper insert is made of polypropylene (PP). For undiluted essential oils or solvents, we recommend checking how the plastic behaves with your specific formulation before you fill a larger quantity.

Closures with the same neck finish, as well as other ready-made bottle and closure combinations, can be found in the Handymade range. If you make your own combination, we recommend testing the tightness and dispensing with your specific formulation.

The set is not approved for contact with food. The certificate applies to cosmetic products, so do not use the bottle for edible oils, syrups or infusions intended for consumption.

The dropper insert and cap are easy to separate from the bottle, so you can sort the glass and plastic separately at the end of their life.

Frequently asked questions