Amber Glass Bottle, White Tamper Evident Cap with Inner Dropper, 30 ml

Glass bottle, vial, white cap with dropper insert, 30 ml is a ready-made complete set for dropper dispensing of liquid preparations. It consists of a brown glass vial with a nominal volume of 30 ml, a plastic dropper insert fitted into the neck, and a white screw cap. The brown glass reduces light transmission, making this set particularly suitable for facial serums, oil blends, tinctures and concentrates with essential oils that lose efficacy or change scent with prolonged light exposure. The dropper insert always releases only a small amount, so the set is used wherever the preparation is dispensed drop by drop, not poured.

What the set is suitable for

The set is intended for preparations with low to medium viscosity that need to flow slowly and in a controlled manner:

• Facial and hair serums – oil-based and water-based serums where a small dose per application matters.
• Oil blends and massage oils in small packaging – samples, travel sizes or concentrated blends applied drop by drop.
• Tinctures and herbal extracts with an alcohol base – glass does not react with alcohol and the brown colour slows light-induced degradation of plant components.
• Essential oil blends and fragrance compositions – dropper dispensing is practically a necessity with these, and brown glass additionally protects sensitive components.
• Trial batches – a volume of 30 ml is sufficient for a stability test without having to fill a larger container.

The complete set is declared suitable for contact with cosmetic products. The glass bottle itself also holds a certificate for direct food contact; however, the plastic dropper insert and cap do not, so the set as a whole is intended for cosmetics.

How to use the set

The dropper insert is a plastic piece that is pressed into the neck of the vial after filling. It has no rubber bulb – drops are dispensed by tilting the bottle; the contents pass through the narrow opening of the insert and flow out one drop at a time. The cap then screws onto the neck thread over the dropper insert and seals the container. The dropper insert alone does not seal the bottle; the seal is provided only by the cap.

The set includes the long version of the dropper insert. The flow rate depends on the viscosity of the preparation: watery solutions and thin oils drip smoothly, while thick oils or serums with a higher proportion of thickener flow slowly and you may need to wait a moment.

Nominal and total volume

When filling, it is useful to distinguish two figures. The nominal volume is the volume for which the container is intended under normal filling conditions and which is stated on the label. The total volume to the brim is the physical capacity of the bottle up to the neck. The difference between them allows for the dropper insert, which takes up some space when pressed into the neck, and for expansion of the contents with temperature changes. The bottle is filled to the nominal volume, not to the brim. Otherwise, inserting the dropper insert will force the contents out, and residues on the thread impair the cap seal. Both volumes are listed in the specifications.

Good to know

• Preparation before first filling – before filling with cosmetics, it is recommended to rinse the bottle, disinfect it with isopropyl alcohol or ethanol and allow it to dry completely. It is advisable to spray the dropper insert and cap in the same way and let them dry.
• Material compatibility – glass is chemically resistant to oils, alcohol and acidic or alkaline aqueous solutions. The dropper insert is made of polypropylene and the cap of polyethylene. For preparations with a high proportion of essential oils, pure essential oils or solvents, we recommend testing the behaviour of the plastic parts on one sample; some components may soften or discolour the plastic over time.
• Heat – glass tolerates filling with warmer contents; however, the plastic dropper insert and cap are fitted only after the preparation has cooled to room temperature. Do not expose the filled bottle to sudden temperature changes, as the glass may crack.
• Labelling – the cylindrical body of the vial allows a label to be applied around its circumference. Choose label dimensions based on the height and diameter given in the specifications, so it does not extend into the shoulder area of the bottle.
• Reuse – the glass bottle can be reused after thorough washing and disinfection. The dropper insert deforms when removed from the neck and the narrow opening is difficult to clean of oil residues, so it is recommended to replace it with a new one when refilling. The cap just needs to be washed and dried.
• Other closures – other closures from the Handymade range also fit the neck with the same thread type. With a custom combination, we recommend verifying the seal and dispensing with the specific formulation.
• Recycling – the glass bottle goes into glass recycling; the plastic dropper insert and cap are separated before disposal and go into plastic recycling.

Frequently asked questions