What material do clothes moths primarily feed on?

Clothes moths primarily feed on keratin, a protein found in natural fibers. Wool, being a natural fiber, is rich in keratin, making it a primary target for clothes moth larvae. These larvae consume wool and other animal-based materials, such as silk and fur, which contain the necessary nutrients to support their development. While clothes moths may occasionally damage items made from cotton or synthetic materials like polyester, they are not primarily attracted to these fabrics. This distinction is crucial to understanding the specific dietary preferences of clothes moths and their impact on textiles.