Atelocollagen is a product of Koken Pharma company (Japan). The AteloGene brand products are tools for molecular delivery and AteloCell brand products are scaffolds for cell culture. Atelocollagen is a proteolytic digest of native bovine collagen that displays low antigenicity and high biodegradability. The non-helical telopeptides from both ends of Type 1 collagen are removed, and the remaining high molecular weight helical protein is purified and assembled into many formats suitable for mammalian cell culture applications and in vivo implantation. Atelocollagen is a stable scaffold in vitro, and may last up to 3 months upon implantation depending on the product.