Durability and Shatterproof: This is the most significant advantage over glass. Plastic jars will not break, crack, or shatter if dropped. This makes them safer for use in bathrooms, reduces product loss, and minimizes the risk of injury.
Lightweight: Plastic is extremely light, which drastically reduces shipping costs for manufacturers. It also makes the product more portable and convenient for consumers, especially for travel (meeting airline carry-on regulations easily).
Versatility in Design: Plastic can be injection-molded into an almost infinite variety of shapes, sizes, and intricate designs. This allows brands to create unique, ergonomic, and recognizable packaging that stands out on the shelf.