Conventional cosmetic packaging materials are basically plastic and glass. The glass bottle contains the following benefits:
The sense of high-grade, the glass bottle gives people a higher level than the plastic bottle.
Heavier weight, more weight in the hand, and feel more material.
More stable. Plastic bottles are not suitable for some all-oil type cosmetics . The oil will melt the plastic. This problem does not exist with glass bottles.
The glass is transparent and can be filled with some transparent and colorful cosmetics. The display effect is better.
There is another issue that manufacturers are more concerned about. Glass bottles are more convenient and more thorough than plastic bottles. I am a cosmetics practitioner. The easiest and most thorough way to disinfect packaging materials is to wash them with water and then bake them at high temperature. The glass bottle can be washed and baked with water, because the glass is resistant to high temperatures. Plastic bottles can’t be sterilized in high temperature, they melt as soon as they are heated, and they can’t be washed. After washing, they are filled with water. The effects of ozone and ultraviolet disinfection are very weak, and they can only be sent to a special institution for irradiation, which wastes time and increases costs, so plastic bottles are really not recommended.