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

The amber glass medicine bottle, 30 ml, is supplied as a ready-made set with a plastic dropper insert and a white cap. It is intended for filling with serums, facial oils and other liquid cosmetic products that are dispensed by the drop. Amber glass protects the contents from light, so the bottle is suitable for formulations with light-sensitive active ingredients and for oil blends prone to oxidation.

The 30 ml volume corresponds to a common size for a facial serum or facial oil. It is also enough for samples and trial batches, where the behaviour of a formulation is first tested in a smaller quantity. The set is declared as suitable for contact with cosmetics, and the declaration of conformity is available with the product.

What it is used for

• Facial serums – water-based and oil-based serums with active ingredients, which are applied in small amounts and are well suited to dispensing by the drop.
• Facial and body oils – blends of vegetable oils, optionally with added essential oils; dark glass slows their degradation caused by light.
• Oils for cuticles, beard and hair ends – small doses applied directly where needed, without fingers coming into contact with the contents of the bottle.
• Trial batches – when fine-tuning a formulation, a smaller volume is filled and the fragrance, colour and texture are observed in the packaging in which the product will actually be used.

How the set works

The bottle is filled without the dropper insert. After filling, the dropper insert is pressed into the neck, where it holds firmly, and the assembly is closed with a cap with an 18/410 neck finish. When using it, simply tilt the bottle; the contents flow out drop by drop and are not poured out all at once.

The cap serves as the closure and protects the dropper insert from contamination. If you prefer a different way of dispensing, you will find closures with the same neck type in the Handymade range, together with other ready-made combinations. For your own combination, we recommend checking in advance the tightness and behaviour of the closure with your specific formulation.

Volume and filling

The page gives two volume figures, and the difference between them is of practical importance. The nominal volume is the quantity the bottle is designed for in normal filling. The total volume to the brim given in the parameters is the physical volume up to the neck. The difference provides a reserve for the dropper insert, which takes up part of the space once inserted, and for the expansion of the contents with changes in temperature.

Good to know

Before the first filling, wash the bottle, dropper insert and cap, disinfect them with isopropyl alcohol or ethanol and leave them to dry completely. Residual moisture is undesirable in an anhydrous oil-based product and increases the preservation requirements in a water-based serum.

The dropping speed depends on the viscosity of the contents. Thin oils and water-based serums flow smoothly, while thicker blends, for example those containing castor oil or thickened serums, drip more slowly. Test this on a small sample before filling the whole batch.

After thorough washing and disinfection, the bottle can be reused. When switching to a different product, we recommend replacing the dropper insert, because oil residues in the narrow tube are difficult to clean. For disposal, glass belongs in glass waste and the dropper insert and cap in plastics, so separate them before throwing them away.

Frequently asked questions