Amber Glass Bottle, White Safety Cap & Dropper, 15 ml

A small bottle for a few drops of serum or essential oil that you do not have to assemble from separate parts. The 15 ml amber glass medicine bottle, the plastic dropper insert and the white safety cap come as a ready-made set for small quantities of liquid preparations that are dispensed drop by drop. Amber glass filters light, so the medicine bottle is mainly filled with essential oils, fragrance oil blends for diffusers, facial serums, oil elixirs for the face or beard, tinctures and concentrated active ingredients where the exact amount matters. The small volume is also suitable for samples and test batches.

The set consists of three parts: a glass medicine bottle with an 18/410 neck finish, a short clear dropper insert made of polypropylene that is pressed into the neck, and a smooth white plastic cap. All three components are declared suitable for contact with cosmetic products and the set is intended for cosmetics. You will find the declaration of conformity with the product.

What it is used for

• Essential oils and fragrance blends – amber glass protects sensitive ingredients from light and the dropper insert lets you measure individual drops into an aroma lamp, a diffuser or a recipe.
• Oil-based facial and hair serums – a few drops per application are easy to dispense, without running down the neck.
• Tinctures and alcohol extracts – 15 ml corresponds to the amount that is commonly prepared for personal use or as a sample.
• Concentrated active ingredients and samples – a small medicine bottle saves raw material, and a customer or test group receives an exactly measured amount.

How the set works

After the medicine bottle is filled, the dropper insert is pressed into the neck and holds firmly in it. When you turn the bottle upside down, the contents flow out through the narrow opening drop by drop, so there is no risk of a larger amount spilling at once. The dropper insert in the neck also serves as protection against spilling if the open bottle is knocked over. The cap is screwed onto the 18/410 thread, presses against the dropper insert and closes the packaging.

The dripping speed depends on the thickness of the contents. Thin essential oils and alcohol solutions flow out quickly, thicker oils and serums more slowly. With very thick formulations, the dropper insert may dispense too slowly and a different type of closure is more suitable.

Nominal and total volume

The nominal volume of 15 ml is the amount the medicine bottle is designed for with normal filling. The brimful volume given in the parameters is the physical volume up to the neck. The difference between them is a reserve for the dropper insert, which slides into the neck when pressed in, and space for the contents to expand when the temperature changes. Fill up to the nominal volume. An overfilled medicine bottle overflows through the neck when the dropper insert is pressed in and contaminates the thread, so the cap then does not seal properly.

Good to know

Glass does not tolerate sudden changes in temperature. Let a hot oil phase or freshly melted butter cool to at least lukewarm before filling, otherwise the wall may crack. Likewise, do not fill the medicine bottle in the cold and then heat it straight away.

A dropper insert made of polypropylene copes with common cosmetic oils and serums. With concentrated essential oils, strong alcohol solutions and mixtures with solvents, we recommend checking after several weeks of contact whether the dropper insert changes shape, has hardened and still seals. The glass wall of the medicine bottle has no problem with such contents.

The medicine bottle can be used repeatedly. The dropper insert is removed from the neck with a thin object slid under its edge, washed together with the bottle and pushed back in after disinfection. If it is damaged during removal, replace it, as a deformed dropper insert does not seal.

Closures with the same 18/410 neck finish and other ready-made combinations of a medicine bottle with a dropper insert or a different cap can be found in the Handymade range. If you make your own combination, check the seal, the dispensing and the behaviour of the packaging with your specific formulation.

At the end of its life, rinse the medicine bottle, remove the dropper insert and sort the glass as glass, and the dropper insert and cap as plastic.

Frequently asked questions