A PET cosmetic jar is a type of container typically used to store makeup, skincare products, or other small items. These jars are made from PET plastic, which is a recyclable and lightweight material. PET cosmetic jars are available in a variety of sizes and shapes, making them a versatile option for packaging. Some common features of these jars include screw-on lids and airtight seals.PET cosmetic jars are a popular choice for packaging due to their many benefits. These jars are durable, leak-proof, and easy to recycle. Additionally, they protect your products from UV rays and other environmental factors. PET cosmetic jars are an excellent way to store your products safely and securely.