VitroCol is a 3 mg/ml, type I human atelocollagen solution for 2D and 3D cell culture, or as a collagen standard. VitroCol collagen is naturally secreted from human neo-natal fibroblast cells, then processed and purified to yield the naturally produced human collagen. VitroCol sets the standard for purity (>99% collagen content). VitroCol is approximately 97% Type I human collagen with the remainder being comprised of Type III collagen. The concentration for each specific lot is provided on a Certificate of Analysis that is available with the purchase of each product. VitroCol is soluble atelocollagen in 0.01 N HCI, therefore, the pH is 2. VitroCol is especially ideal for human cell culture systems when coating of surfaces, providing preparations of thin layers of culturing cells, or use as a solid gel. VitroCol human collagen is provided in user-friendly packaging for use and storage. VitroCol is sterile filtered and is supplied as a ready to use solution.