Holds Its Own: AS plastic has good resistance to water, alcohols, dilute acids, dilute alkalis, and oils. This is crucial for housing a wide range of cosmetic formulations without the risk of the container degrading, cracking, or becoming cloudy.
Barrier Properties: It provides a reasonable barrier against moisture and gases, helping to preserve the integrity and shelf life of the product inside (though for highly sensitive formulations, an additional inner liner might be used).
Affordable Luxury: While it offers a premium look, AS plastic is significantly cheaper to manufacture and transport than glass. It's also less prone to breaking, reducing losses and shipping insurance costs.
Lightweight: Its light weight reduces shipping costs compared to glass, making it a more economical choice overall.