Gloss Black Glass Bottle, White Tamper Evident Safety Cap & Dropper, 100 ml

A glossy black glass bottle of 100 ml, a long dropper insert and a white ribbed tamper-evident cap form a set for liquids that are measured out in drops and need protection from light. The opaque black glass keeps daylight away from the contents, which benefits essential oils, fragrance compositions, oil serums and tinctures, whose components lose their scent or change colour in light. The bottle and the cap have the same 18/410 neck finish and the dropper insert fits directly into the neck, so the parts fit together without you having to look for a separate closure.

The whole set is declared suitable for contact with cosmetic products. Only the glass bottle on its own has a certificate for direct contact with food; the set as a whole is intended for cosmetics.

What the set is suitable for

• Essential oils and fragrance compositions – the fragrance stays protected in the dark and the dropper insert lets you measure out the exact number of drops for a recipe or a diffuser.
• Oil serums and facial oils – dark glass slows the effect of light on sensitive vegetable oils and dispensing by drops prevents waste.
• Tinctures and alcohol extracts – glass does not react with alcohol, and the dropper insert makes it easy to measure out a few drops into water or into a finished product.
• Concentrates of active ingredients – for ingredients with a low usage rate it is enough to count the drops without a measuring cup.

Volume and filling

The nominal volume is the amount the bottle is designed to hold when filled normally. The brimful capacity given in the parameters is the physical volume up to the top of the neck. The difference between them is a reserve for the dropper insert, which takes up part of the space in the neck once inserted. For this reason, fill the bottle to the nominal volume, not to the brim.

How to dispense

After unscrewing the cap, the dropper insert stays in the neck. Turn the bottle upside down and the contents flow out one drop at a time; the speed is controlled by tilting the bottle slightly. Liquid oils, alcohol solutions and essential oils flow smoothly. Thicker oils drip slowly, and very thick fillings or emulsions cannot be dispensed with a dropper insert. The tamper-evident ring on the cap breaks when the bottle is opened for the first time, so it is clear at first glance whether the bottle has already been opened. The ribbed surface of the cap makes it easier to unscrew even with oily hands when working with oils.

Good to know

• Preparation before first filling – wash the bottle, disinfect it with isopropyl alcohol or ethanol and let it dry completely. It is enough to rinse the dropper insert and the cap with alcohol and dry them.
• Glass and heat – let the contents cool down before filling. A sudden change in temperature can damage the glass.
• PP dropper insert – with concentrated essential oils, fragrance compositions with a higher proportion of solvents or during long-term storage, we recommend checking how the dropper insert behaves with your specific filling.
• Tightness with your own filling – before a larger production run, check that the set with your formulation does not leak when stored on its side and during transport.
• Reuse – the glass bottle can be refilled after washing and disinfection. Replace the dropper insert and the cap with new ones when changing the filling or after the tamper-evident ring has been broken.
• Other closures – closures with the same neck finish fit the bottle, and you can find ready-made combinations in the Handymade range. If you make your own combination, check the tightness and dispensing.
• Recycling – the bottle belongs in glass; the dropper insert and the cap belong in plastics after separation.

Frequently asked questions