The present invention relates to a modified collagen obtainable by providing isolated collagen, optionally an isolated collagen dispersion freezing the isolated collagen and dehydrating the frozen isolated collagen. The present invention also relates to a method for preparing a modified collagen, the method comprising the steps of providing isolated collagen freezing the isolated collagen and dehydrating the frozen collagen. Also disclosed are compositions comprising a modified collagen according to the present invention, uses thereof, and methods for the manufacture thereof.