The 15 ml cobalt blue glass bottle is a practical midpoint between 10 and 30 ml: large enough to hold a season's worth of contents, small enough to remain hand-friendly and travel-suitable. This pack of 156 is supplied without caps, so you can flexibly combine it with aluminium, child-resistant, pipette, or screw caps — according to your formulas and applications.
What the pack of 156 contains
156 cobalt blue glass dropper bottles with a 15 ml nominal fill capacity. Each bottle is approximately 65 mm tall, 28 mm in diameter, with an empty weight of roughly 30-35 g. Total package weight is around 5.15 kg. Caps are NOT included — you choose the closure that fits your needs.
Cobalt blue glass — UV protection and vintage aesthetics
Cobalt blue glass protects the contents' scent profile by filtering UV radiation and the shorter (blue-green) wavelengths of visible light. Delicate linalool-based essential oils (lavender, bergamot, ylang, neroli, jasmine) are particularly well suited to storage in blue glass. The deep blue tone gives a distinct vintage apothecary character, which is especially advantageous when building a cosmetic or aromatherapy product line and aiming for a coherent, characterful shelf presentation.
Why choose the 15 ml size
15 ml is a practical midpoint in the essential-oil cosmetics world: enough quantity to use a facial serum for 4-6 weeks, or to dispense an essential oil blend across a whole season, while still compact — easy to fit into a handbag or travel kit. 15 ml is also a good size for developing perfume bases: not too much while you are still fine-tuning the recipe, yet enough to use the finished version meaningfully. The bottle neck is a standard GL18 size, so caps used for 10 ml bottles generally fit.
Typical areas of use
- Facial and lash serums, regenerating skin oils
- Essential oil blends for daily dispensing
- Custom perfume bases and recipes under development
- Botanical tinctures, hydrosols, flower essences
- Vintage-styled packaging for an own small-business product line
Cleaning and storage
We recommend rinsing new bottles in warm soapy water before first use, then drying thoroughly. An isopropyl alcohol rinse is the most effective way to remove residual scents. Avoid the dishwasher. Store filled bottles in a cool, dark place away from direct sunlight for optimal preservation.