Yes, the glass container is suitable for serums, oil elixirs and concentrated blends with a higher content of active substances that are dosed drop by drop. The dark glass helps to protect the contents from light and the dropper allows precise and hygienic dosing. For formulations with atypical or more aggressive components, we always recommend producing a trial batch and verifying the long-term compatibility of the product with the packaging.

The glass bottle can be reused if correct hygiene principles are followed. Before each new filling, the container must be thoroughly cleaned, rinsed and then disinfected, ideally using a suitable alcohol, for example IPA 99 % isopropyl alcohol or ethanol 96 % denatured, plant-based. Only after the packaging is completely dry do we recommend refilling the bottle, in order to minimize the risk of microbial contamination and product deterioration.

Before introducing it for sale or regular use, we recommend preparing a test sample of the product and filling it into the bottle in the planned volume. It is then advisable to monitor the behaviour of the packaging and the contents over several weeks – in particular the tightness of the dropper, the smoothness of dosing and any changes in colour, fragrance or consistency. Store the bottle under the recommended conditions that you also state for your final product. In this way you will verify both practical and long-term compatibility.

If you decide not to reuse the bottle, we recommend first emptying it and removing as much of the remaining contents as possible. The glass part of the packaging can usually be handed over to separated glass collection in accordance with local regulations, which should be in line with the recommendations arising from the product parameters on the website. The dropper and any plastic or rubber parts should be separated and sorted according to the material type stated in the parameters. Always follow local waste sorting instructions and recommendations for the given packaging material.

When choosing suitable packaging, you can use the advanced filter available at the top of the page after clicking on the relevant packaging category. The advanced filter allows you to sort the range clearly according to key parameters such as neck type, size, colour and material. Thanks to this, you can quickly narrow down the selection to bottles, medicine bottles, jars or pots that best match your product and the desired dosing.