Blue Glass Bottle, Glossy Silver Dropper, 15 ml

The blue glass bottle with dropper dispenses small amounts of liquid products drop by drop. With a nominal volume of 15 ml, it is suitable for facial serums, facial oils, oil blends and tinctures, that is, products applied in small amounts where precise dispensing matters. The blue glass limits the amount of light reaching the contents. The dropper with a glossy silver finish gives the bottle the look of a finished product, so the set is used for gift packaging as well as for samples from smaller batches.

What it is suitable for

• Facial and hair serums – measure a few drops with the dropper and apply them directly to the skin or to your palm.
• Facial oils and oil blends – glass does not react with oils, and thicker consistencies are dispensed in larger drops.
• Tinctures and herbal extracts with an alcohol base – glass withstands alcohol, and the tincture is dispensed drop by drop.
• Samples and test batches – the small volume is enough to try out a formulation before making a larger quantity.

How the set works

The bottle has a medicine bottle shape with an 18/410 neck finish. The dropper screws onto the neck and seals in the same way as an ordinary cap. Squeezing the bulb draws the contents into the glass tube, and gentle squeezing releases them drop by drop. The size of a single dose depends on the viscosity of the contents. A thicker oil forms larger drops than a water-based serum, so we recommend testing the dispensing with your specific formulation.

The glass tube of the dropper repeatedly comes into contact with the contents during use, and with the skin during application. Products with a water phase therefore need effective preservation. For purely oil-based products, clean hands and quick closing help ensure that as little contamination as possible gets into the bottle.

Filling and volume

The nominal volume is the volume the bottle is designed for under normal filling. The brimful volume is the physical volume up to the neck. The difference between them is a reserve for the dropper tube, which pushes part of the contents upwards when screwed in, and for the expansion of the liquid when the temperature changes.

Good to know

Before the first filling, wash the bottle and the dropper, disinfect them with isopropyl alcohol or ethanol and leave them to dry completely. The dropper tube is disinfected by drawing in and releasing the alcohol. Residual water in the dropper dilutes the contents and can cause cloudiness in anhydrous products.

Glass withstands repeated washing and disinfection, so the bottle can be used more than once. When changing the contents, for example from a coloured oil to a clear serum, it is better to replace the dropper or clean it thoroughly. Residues of fragrance or colour stay in the bulb and in the thread longer than in the glass. Glass does not tolerate sudden temperature changes, so hot contents are not poured directly into the bottle but only after they have cooled.

A declaration of suitability for contact with cosmetic products is available for the dropper. This declaration is not available for the bottle itself, so the set as a whole is not declared as suitable for contact with cosmetics. You will find the documentation for the individual components with their separate products in the Handymade range. The range also includes other closures with the same neck type and ready-made bottle and closure combinations. If you combine components yourself, we recommend checking the tightness and dispensing.

Frequently asked questions