The quality of essential oils, tinctures, and botanical extracts depends not only on the raw materials but also on the storage container. Light — particularly UV and shorter visible wavelengths — rapidly degrades volatile aromatic compounds. This pack of 156 contains 15 ml black glass dropper bottles, with a child-resistant (childproof) cap. It is intended for small-scale makers, essential oil blenders, and natural cosmetics formulators who want maximum light protection for their preparations.
What the pack of 156 contains
The pack contains 156 15 ml black glass dropper bottles of uniform size and finish. Each bottle is approximately 65 mm tall, 28 mm in diameter, with an empty weight in the range of 33–37 g per bottle. The total gross weight of the pack is approximately 5.491 kg. The bottle neck uses the GL18 standard, so commercially available caps, droppers, and pumps will fit.
Black glass and complete light-blocking
Black glass provides significantly stronger light protection than amber: it is virtually opaque, blocking the full spectrum of visible light as well as UV radiation. This is particularly important for sensitive, photocatalytically degraded components — such as citrus essential oils, retinol-based serums, or certain herbal tinctures. A light-free environment substantially extends the shelf life of the preparation and preserves the original scent profile. The glass is chemically inert, contains no plasticisers, and does not react with the stored substances — making it the recommended primary packaging for essential oils and natural cosmetics.
Safety mechanism of the child-resistant cap
The child-resistant cap uses a push-and-turn mechanism: to open, the cap must be pressed down while turning. This safety feature prevents young children from accidentally opening the bottle — particularly important for storing concentrated essential oils, herbal tinctures, and cosmetic raw materials. The cap features an inner sealing liner for leak-proof, odour-tight closure.
Areas of use
- Bottling and gifting your own essential oil blends
- Storing perfume bases and colognes with light protection
- Filling light-sensitive facial serums and retinol-based preparations
- Bottling botanical tinctures, hydrosols, and flower essences
- Building a DIY private-label cosmetics line
Cleaning and recycling
The bottles are easy to clean with warm water and a neutral soap. For stronger fragrance residue, a 70% isopropyl alcohol rinse followed by complete drying is recommended. Avoid dishwasher use, as high temperatures and aggressive detergents can damage labels and cap seals over time. The glass is recyclable; aluminium caps should be sorted into the appropriate metal recycling stream.