Foldink's mColSA bioink represents a groundbreaking synergy of medical collagen and Sodium alginate, offering a robust solution for cutting-edge tissue engineering and 3D bioprinting. Collagen, a key component of the extracellular matrix, excels in promoting cell adhesion, growth, and migration. When paired with Sodium alginate, a natural, non-inflammatory biopolymer from brown algae, this blend forms a versatile matrix that capably entraps water and other molecules, while permitting essential diffusion. This biocompatible, low-immunogenic bioink undergoes crosslinking through an ionic mechanism, typically using Ca2+ ions, included in the standard mColSA package as a CaCl2 solution. Unique to this formulation is the ColSA 70 variant, renowned for its excellent printability and the ability to form stable, durable scaffolds. Foldink offers customized ratios of collagen and Sodium alginate in their bioinks, tailoring to the unique objectives and needs of each research lab.