Abstract: This disclosure provides compositions comprising a collagen polypeptide (e.g., a human type 21 collagen polypeptide or a truncate thereof) or an elastin polypeptide (e.g., a human elastin polypeptide or a truncate thereof), and one or more active ingredient. This disclosure also provides compositions comprising an elastin polypeptide (e.g., a human elastin polypeptide or a truncate thereof) in combination with a collagen polypeptide or truncate thereof. This disclosure further provides formulations comprising said composition, such as personal care products. This disclosure further provides methods of using the compositions and formulations provided herein (e.g., for application to the skin and/or hair a subject).

Abstract: Provided herein are non-naturally occurring polypeptides comprising a sequence of a fragment of a collagen and recombinant cells containing heterologous nucleic acid sequences encoding the non-naturally occurring polypeptides. Further provided herein are animal-free methods of generating and purifying such non-naturally occurring polypeptides using microorganisms, preferably from bacterial cells.

Abstract: Provided herein are non-naturally occurring polypeptides comprising a sequence of a fragment of a collagen and recombinant cells containing heterologous nucleic acid sequences encoding the non-naturally occurring polypeptides. Further provided herein are animal-free methods of generating and purifying such non-naturally occurring polypeptides using microorganisms, preferably from bacterial cells.

Abstract: Provided herein are non-naturally occurring polypeptides comprising a sequence of a fragment of a collagen and recombinant cells containing heterologous nucleic acid sequences encoding the non-naturally occurring polypeptides. Further provided herein are animal-free methods of generating and purifying such non-naturally occurring polypeptides using microorganisms, preferably from bacterial cells.

Abstract: Provided herein are non-naturally occurring polypeptides comprising a sequence of a fragment of a collagen and recombinant cells containing heterologous nucleic acid sequences encoding the non-naturally occurring polypeptides. Further provided herein are animal-free methods of generating and purifying such non-naturally occurring polypeptides using microorganisms, preferably from bacterial cells.

Abstract: Provided herein are non-naturally occurring polypeptides comprising a sequence of a fragment of a collagen and recombinant cells containing heterologous nucleic acid sequences encoding the non-naturally occurring polypeptides. Further provided herein are animal-free methods of generating and purifying such non-naturally occurring polypeptides using microorganisms, preferably from bacterial cells.