Cosmetic Packaging: Plastic vs. Glass and Colored Bottles
Question
Regarding cosmetic packaging, I have two questions:
1. Is there a difference in preservation capability between good quality plastic bottles and glass bottles?
2. Is there a difference in light protection capability between amber colored bottles and opaque colored bottles?
Answer
Hello!
Based on the information provided:
Is there a difference in preservation capability between plastic and glass bottles?
Good quality plastic bottles can preserve cosmetic products just as well as glass bottles.
Is there a difference in light protection capability between amber and opaque colors?
The ability to protect against light depends on the level of amberness and opacity of the bottle. This can only be tested in a laboratory by measuring the level of light transmission.