Glass bottle, blue, black-silver dropper, 10 ml

A glass bottle with dropper in a volume of 10 ml is a ready-to-use set for small quantities of liquid preparations dispensed by drops. Blue glass filters part of the light, offering better protection for light-sensitive contents than a clear container, and the glass dropper tube does not absorb fragrances or colorants. The set is particularly suitable for facial and oil serums, essential oil blends, perfume composition samples, tinctures, active ingredients in glycerine or oil solution, and for measuring small doses of raw materials in production. Both the bottle and the dropper are declared as suitable for contact with cosmetic products.

Why choose blue glass with a dropper

• Light protection – blue glass transmits less light than clear glass, which slows down yellowing and loss of efficacy of oils, vitamins, essential oils and plant extracts. It is not a complete barrier, so store the container away from direct sunlight regardless.
• Precise dosing – the dropper allows you to measure out a few drops without pouring and without finger contact with the contents, which is appreciated when working with concentrated serums and active ingredients.
• Chemically inert packaging – the glass of the bottle and the glass dropper tube do not release any components into the contents and do not absorb odours, so the set can be used for a different preparation after washing without any residual scent.
• Small volume for samples and testing – ten millilitres is enough for a test series, a customer sample, or a personal dose of serum that you will use up before the contents have a chance to degrade.

How the set works

The bottle is shaped like a vial with a short neck, onto which the dropper screws directly. The dropper consists of a glass tube, a silicone bulb for suction, and an aluminium collar in silver. The black bulb with the silver collar creates a contrasting yet understated look against the blue glass. The length of the tube is matched to the height of the bottle so that it almost reaches the bottom, allowing the last of the contents to be dispensed.

Squeezing the bulb draws part of the contents into the tube and releases it drop by drop. Drop size depends on the viscosity and surface tension of the liquid. Thin aqueous solutions and alcohol tinctures drip quickly in smaller drops, while thick oils and serums with glycerine drip more slowly in larger drops. If you need precise dosing, check with your specific formulation how many drops correspond to the required amount.

Nominal and total volume

For every container we state two volumes. Nominal volume is the quantity the container is designed for under normal filling conditions and the figure stated on the label. Total volume to the brim is the physical capacity of the bottle up to the neck. The difference between them is the headspace for the dropper tube, which displaces some of the contents upwards once screwed in, and for liquid expansion with temperature changes. The bottle should therefore be filled to the nominal volume, not to the brim. Overfilling would cause the contents to enter the thread when the dropper is fitted and the neck would not seal properly.

What to know before filling

• Oil and water-based contents – glass tolerates oils, alcohol tinctures, hydrolates and water-based serums. For water-based and hydrolate products, do not forget to include a preservation system. The packaging itself does not prevent microbial contamination, and air enters the bottle each time it is opened.
• Concentrated essential oils – the glass tube resists them, but prolonged contact with the bulb and seal is not recommended. After dosing, allow the contents of the tube to drain back into the bottle and do not store the dropper with liquid drawn into it.
• Glass and heat – fill with cooled content. A hot emulsion or heated butters can damage the glass if the temperature changes sharply, and the dropper is not designed for thick, solidifying preparations.
• Repeated use – once empty, simply wash the set with warm water and detergent, rinse the tube by drawing and releasing clean water several times, and leave to dry. Check the bulb regularly; replace the dropper if it loses elasticity.
• Labelling – the cylindrical shape allows you to apply a narrow wraparound label or a small front-facing sticker.
• Shipping – the dropper seals under normal handling. When shipping thin liquids, however, we recommend testing the seal with your specific formulation and transporting the bottle in an upright position.

Frequently asked questions