Cosmetic tubes are primarily made from LDPE (Low-Density Polyethylene), HDPE (High-Density Polyethylene), and ABL (Aluminum Barrier Laminate). LDPE is the most common for its flexibility and soft touch, while ABL offers the highest barrier protection against oxygen and light, making it more expensive but essential for active ingredients like Vitamin C or Retinol. Recently, PCR (Post-Consumer Recycled) plastics and Sugarcane PE have gained traction; these eco-friendly options typically carry a 10-20% price premium due to specialized processing.