Yes, this card is acid-free, which means it's designed to resist yellowing and degradation over time, ensuring your artwork or important documents maintain their integrity for years to come. Being made from 100% long-fibered cotton rag is a key reason for its durability and archival quality. Unlike wood-pulp papers, cotton fibers are naturally strong and do not contain the lignin that causes yellowing. The eco-friendly process also avoids harsh chemicals, preserving the paper's natural beauty and strength. So, you can be confident that this card is a lasting, high-quality material.