Materials Used:

1. Aluminum Foil: Aluminum foil is used in packaging for its barrier properties. It effectively blocks light, moisture, oxygen, and odors, making it ideal for protecting cosmetics. It also gives a premium look to the packaging.

2. PE (Polyethylene): PE is a durable, waterproof plastic that adds strength and flexibility to the packaging. It can be used as a layer inside or outside the aluminum foil to provide additional protection and ease of sealing.