Clear Glass Bottle, Black Aluminium Cap, 50 ml

This 50 ml glass bottle with a black aluminium cap is designed for smaller amounts of liquid cosmetics: face and body oils, serums, toners, facial waters or trial batches of new formulations. Clear glass shows the colour and clarity of the contents. It is therefore suitable for products that are not light-sensitive and wherever the contents should be visible at first glance. The aluminium cap with an 18 mm thread closes the bottle flat, without a dispensing element, so the contents are poured directly from the neck. The set is declared suitable for contact with cosmetics.

What it is suited for

• Face and body oils – the narrow neck allows controlled pouring drop by drop, even without a dropper.
• Serums and toners – the 50 ml volume corresponds to a common pack size for facial care.
• Trial batches – when testing the stability and appearance of a new formulation, you can see cloudiness, phase separation or colour change through the glass.
• Small gift sets – a black cap on clear glass looks simple and combines well with a label in any colour.

The bottle and cap in practice

Glass does not react with common cosmetic ingredients, so the bottle can be filled with oil-based, water-based and alcohol-based products. The cap is made of aluminium and has a sealing liner made of foam polyethylene (EPE) inside, which sits on the neck and seals the contents. For alcohol-based products and blends with a higher proportion of essential oils, we recommend checking the tightness and the behaviour of the liner with your specific formulation, especially before longer storage or transport.

You will find two volume figures on the page. The nominal volume is the amount the bottle is intended for in normal filling, and it is the one stated on the product label. The total brimful volume is the physical volume up to the neck and is listed in the parameters. The difference between them provides a margin for the closure, any dropper or pump, and for the expansion of the contents when the temperature changes.

The aluminium cap is one of the closing options. You will find other closures with the same neck type stated in the parameters, as well as ready-made combinations of the bottle with a dropper or sprayer, in the Handymade range. If you make your own combination, check the tightness, the dispensing and the behaviour of the packaging with your specific formulation.

Good to know

Before the first filling, wash the bottle and the cap, disinfect them with isopropyl alcohol or ethanol and leave them to dry completely. The glass withstands washing in warm water and repeated disinfection, but do not expose it to sudden temperature changes, for example by pouring hot contents into a cold bottle. When reusing the bottle, check that the cap liner is not deformed and has not absorbed the previous contents.

Clear glass does not provide protection from light. Store products with sensitive ingredients, such as vegetable oils prone to oxidation or active ingredients sensitive to UV radiation, in the dark, or choose amber or blue glass for them.

After use, the bottle belongs in glass recycling and the unscrewed aluminium cap in metal recycling.

Frequently asked questions