All collagens are good for wounds as long as there is no hypersensitivity to the source molecule. Porcine, as is bovine, can be an issue if not tested for prior to use. The difference is in the details. What makes Acell different from the cheaper collagens like Stimulin, who also has a gel form where Acell does not to my knowledge. Then there is an immediately active collagen that allow the body to utilize very quickly to form granulation tissue caled Cellerate. Neither have a graft and the Acell graft is a beneficial barrier but the reimbursement just changed on it so that will be interesting to see how that evolves. The science is facinating but the results vary amoung products. It is an evolving market obviously though.
