Blue Glass Bottle, Black Tamper Evident Dropper, 15 ml

Glass bottle, blue, black dropper, 15 ml

Glass bottle with black dropper 15 ml is a complete set consisting of a small vial made of blue glass and a dropper with a tamper-evident ring. It is suitable wherever the contents are dispensed drop by drop and also need protection from light: for facial serums, oil blends for the face and cuticles, diluted essential oil blends, tinctures, or test samples of formulations.

Blue glass reduces light penetration to the contents, which slows down the changes that light causes in oils, fragrances, and sensitive active ingredients. The dropper allows you to take exactly as much as needed at the time. The remaining contents stay in the closed bottle without unnecessary contact with air and fingers.

How the set works

• Blue glass – protects the contents from light, while when held up to the light the fill level remains approximately visible. Glass does not react with oils, alcohol, or aqueous solutions.
• Dropper – consists of a glass tube, a silicone bulb, and a plastic screw ring. The tube length is matched to the bottle so that contents can be drawn up even from a lower fill level.
• Tamper-evident ring – tears off on first opening and gives the customer a clear indication that the product has not yet been opened by anyone. For cosmetics manufacturers, this is a practical safeguard both when selling and when distributing samples.
• Drop-by-drop dosing – suitable for concentrated products where a small amount is used per application. Enables precise dosing without spilling or overpouring.

Suitability for contact with cosmetic products is declared for the dropper. The set is intended for cosmetic and technical use, not for food.

Suitable especially for

• Facial and oil serums – the small volume matches the consumption when applying a few drops to the face daily.
• Oil blends with essential oils – for example diluted massage or aromatherapy blends, where blue glass helps protect the fragrant components.
• Cuticle oil, moustache and beard oil – products applied precisely, where the dropper simplifies dosing.
• Tinctures and alcoholic extracts – glass does not react with alcohol and drop dosing is standard for tinctures.
• Samples and test batches – when developing formulations, a small volume holds enough to evaluate stability and fragrance.

For aqueous products without preservation, the set is suitable only for short-term samples. With each use, air enters the bottle and the dropper makes contact with the contents. Commercial aqueous products in a dropper bottle therefore require a suitable preservation system.

Nominal and total volume

The bottle has a nominal volume, meaning the volume it is designed for during normal filling, and a total volume to the brim, meaning the physical volume up to the neck. The difference between them is the allowance for the glass tube of the dropper, which takes up some space once screwed in, and for the expansion of the contents with changes in temperature. Fill to the nominal volume, not to the brim. If filled to the neck, screwing in the dropper would force the contents out through the thread and the bottle could leak.

Good to know

Preparation before first filling. We recommend washing and disinfecting the bottle and dropper with isopropyl alcohol or ethanol before use and allowing them to dry completely. Water residues in an oil product can cause cloudiness or promote the growth of microorganisms.

Silicone bulb and essential oils. The glass parts are resistant to concentrated essential oils. With prolonged contact of the bulb with undiluted essential oils or with a high proportion of solvents, we recommend monitoring its behaviour over time, as elastic components may soften or change in volume with certain ingredients. With diluted blends and common cosmetic oils, this issue is not typical.

Reuse. The glass can be reused after thorough washing and drying. For the dropper, it is important to also rinse the inside of the glass tube and bulb; otherwise, residues of the previous contents would contaminate the new filling. The tamper-evident ring cannot be restored after the first opening.

Labelling. A narrow label wrapping around the body suits the small-diameter cylindrical bottle. Light-coloured labels or transparent films with white printing stand out well on blue glass.

Glass and heat. The bottle is not intended for filling with hot contents or for sudden temperature changes. Allow hot-process products to cool before filling.

Recycling. The glass bottle belongs in the glass recycling. The dropper is a combination of glass, silicone, and plastic, so it should be disassembled and sorted by material before recycling.

Closures with the same neck type as this bottle, and further ready-made combinations, can be found in the Handymade range. When combining the bottle with a different closure of your own choice, we recommend checking the seal, dosing, and packaging behaviour with the specific formulation.

Frequently asked questions