Square glass bottle, glossy silver dropper, 90 ml

The square glass bottle with a glossy silver dropper 90 ml is a ready-made set for filling facial serums, oils, oil blends and tinctures that are dosed drop by drop. Amber glass protects the contents from light, so it is particularly suited to formulations with sensitive ingredients: plant oils prone to oxidation, essential oils or serums with vitamins and plant extracts. The dropper with a glossy silver cap also handles precise dosing, which matters more than pouring speed in concentrated products.

The square shape of the bottle gives the product a bolder, less "pharmacy-like" look than classic round vials and sits well on a shelf as well as in gift packaging. The whole set is declared as suitable for contact with cosmetics. You will find the declaration of conformity with the product.

Why choose this set

• Protection from light – amber glass dampens the passage of light and slows changes in the scent, colour and effectiveness of the contents. For oils and serums with active substances it is a more practical choice than clear glass.
• Precise dosing – the glass dropper lets you take a few drops without spilling, which you will appreciate with concentrated serums, oil blends and preparations applied in small amounts.
• Chemically stable glass – glass does not react with essential oils, alcohol or plant oils, so the contents do not change scent or take on anything from the packaging.
• Ready-made combination – the bottle and dropper have a matched neck type, so you do not have to deal with thread compatibility or the length of the glass tube.

Nominal and total volume

With this set you will come across two volumes. The nominal volume is the amount the bottle is intended for in normal filling and that you state on the label. The total volume to the brim is the physical volume of the glass up to the neck. The difference between them is not a defect but a necessary reserve. Once the dropper is screwed on, the glass tube takes up part of the space, the contents expand slightly with temperature changes, and if filled to the brim the product would overflow. It is therefore filled to the nominal volume, not to the brim. You will find the exact values in the product parameters.

What the dropper is made of

The dropper head combines several materials: a glass tube that is in contact with the product, a silicone squeeze part for suction, a plastic thread and a glossy silver shell made of aluminium. The contents therefore mainly come into contact with glass, which is an advantage with essential oils and spirit-based tinctures that ordinary plastic degrades over time. The silicone part is flexible and keeps its suction even with repeated use.

What products it is suitable for

• Facial and hair serums – both oil-based and water-based, where the exact dose matters.
• Plant and oil blends – for example blends for facial massage, cuticle care or oil cleansing of the skin.
• Tinctures and spirit extracts – amber glass and a glass tube are more suitable for alcohol-based contents than plastic droppers.
• Concentrated active blends – that are dosed drop by drop into a finished cream or mask.

The set is not suitable for creams and thick emulsions; the dropper will not draw them up. For such textures we recommend jars or bottles with a pump.

What is good to know

Preparation before the first filling. Before use, wash the bottle and the glass tube of the dropper, disinfect them with isopropyl alcohol or ethanol and let them dry completely. Residual water in the bottle will jeopardise the stability of anhydrous products and cause cloudiness in oils.

Reuse. The glass can be used again after thorough washing. On the dropper, check that the silicone part has not lost its flexibility and that the glass tube is not cracked. With contents that have a high proportion of essential oils or solvents, we recommend verifying the behaviour of the silicone head on a single piece before a larger batch.

Heat. Do not fill the glass bottle with hot contents. Let them cool to room temperature, otherwise there is a risk of cracking and, as they cool, a vacuum forms that draws air in through the thread.

Labelling. The square walls provide a flat surface for a label, which does not stick around a curve.

Other closures. Closures with the same neck type and ready-made combinations can be found in the Handymade range. With your own combination we recommend verifying the tightness, dosing and behaviour of the packaging with the specific formulation.

Recycling. The glass bottle belongs in glass. The dropper is a combination of several materials and should be separated from the bottle before disposal.

Frequently asked questions