Human Articular Cartilage Digestive Medium II (Collagenase) is a secondary digestion reagent specifically designed for obtaining highly viable human primary articular chondrocytes. Its core function involves efficiently and specifically hydrolyzing the type II collagen network after gently removing the extracellular matrix (such as pre-enzymatic treatment), thereby enabling gentle release and high-yield collection of chondrocytes. Through precise control of high-purity collagenase activity, this product maximizes the preservation of dissociated cell integrity, functional status, and subsequent proliferation potential. It provides a reliable and high-quality source of primary cells for cartilage tissue engineering, disease model development, and regenerative medicine research.