The pack of 30, 500 ml clear pharmaceutical glass bottles with black plastic screw caps is one of the most common and well-proven variants of the CGMB family. The black cap gives a discreet, contrasting look against the clear glass, making an own-label cosmetic line feel coherent and professional. The plastic closure is light yet reliable, and available at a lower price point than the aluminium versions. The 500 ml size is the largest volume in the CGMB series: fewer bottles to fill and label for the same total volume, which means significant time savings in small-business workshop use.
What the pack of 30 contains
30 clear (water-white) pharmaceutical glass bottles with a nominal fill capacity of 500 ml, each paired with a black plastic screw cap. Bottle height ~220 mm, diameter ~80 mm, net unit weight ~380 g; gross package weight 12.54 kg. The cap often has an internal liner inside, further improving the tightness of the seal.
Clear pharmaceutical glass properties
Clear (flint) pharmaceutical glass is chemically inert, does not react with the contents, and contains no plasticisers. Full transparency allows visual inspection of colour, clarity, sediment, and any phase separation. Ideal for lotions, bath oils, massage bases, hydrosols, and carrier oils, where visual control matters. For light-sensitive preparations (concentrated essential oils, high vitamin C), amber glass is the better choice.
Black plastic screw cap details
The black plastic screw cap is an easy-to-handle, re-openable closure. The black colour gives a contrasting yet discreet look — especially good with minimalist labels and natural brand visuals. An internal liner inside prevents leakage and evaporation. The plastic cap is light, does not break on impact, and does not rattle in transit. It provides a stable seal for water-based and diluted oil-based preparations.
Areas of use
- Coherent packaging for own-label lotions and body care
- Water-based cosmetic preparations: toners, hydrosols, essence waters
- Diluted massage oils, essential-oil blends dispersed in carrier oil
- Carrier-oil refill format (argan, jojoba, sweet almond)
- Self-made body care formulas for therapeutic or gift purposes
Cleaning and recycling
Before use, wash the bottles and caps with warm water and a mild soap, then let them dry fully. The black plastic cap can also be cleaned in the dishwasher if it has no label — although high temperatures can slightly deform it in the long term. The glass is fully recyclable, and the plastic cap should go into appropriate plastic recycling.