The glass tester vial can be used repeatedly if hygiene principles are followed. Before each new filling, it is necessary to clean the packaging thoroughly and then disinfect it with a suitable alcohol-based preparation, for example IPA 99 % isopropyl alcohol or ethanol 96 % denatured plant-based. This minimises the risk of microbial contamination and of affecting the stability of the new formulation by residues of the previous product.

This glass tester vial is optimal for liquid and low-viscosity cosmetic products, where precise dosing of a small amount is important – for example perfumes, perfumed oils, facial serums, concentrated active elixirs, hydrolats or toners. You will also use it for trial samples of oil blends and aromatic compositions when developing your own recipes or when presenting them to customers.

Before a new filling, we recommend first cleaning the vial mechanically (rinsing with a suitable cleaning agent and clean water) and then disinfecting it with an alcohol-based preparation, for example IPA 99 % isopropyl alcohol or ethanol 96 % denatured plant-based. After disinfection, allow the packaging to drain well and dry at room temperature in a clean environment. When working, use clean tools and hands to minimise the possibility of product contamination.

If you decide not to use the vial further, we recommend recycling it according to the material specified in the product parameters. After emptying and basic rinsing, place the glass part in the appropriate glass container and sort the cap according to its material marking (most often into plastic or metal). Before handing it over to sorted waste, check the recommendations in the parameter table at the product on Handymade.sk so that you follow the correct recycling rules for the specific type of packaging.

To make it easier to choose packaging, you can use the advanced filter when browsing categories, which is located at the top of the page after clicking on the relevant category (for example vials, dropper bottles, jars). Thanks to the filter, you can quickly narrow down the offer according to parameters such as neck, size, colour and material. By combining these criteria, you will find the packaging that best matches the type of your product, the required dosing and the visual style of your brand.

Yes, the glass cosmetic tester is very practical for developing and testing new formulations in smaller quantities. It allows you to prepare several variants of the same recipe (for example different concentrations of fragrance or active substances), label them conveniently and continuously monitor the stability of colour, fragrance and texture. Thanks to the small volume, it saves raw materials and at the same time provides a realistic picture of how the product will behave in the real packaging during use.