MLA Formatting Quotations. Summary: MLA (Modern Language Association) style is most commonly used to write papers and cite sources within the liberal arts and humanities.
Collagen is a natural type of protein in the body that forms the connective tissues that hold skin, bone, tendons, muscle, and cartilage together.Collagen is so important in the way our skin looks and feels because it is the main structural component providing firmness and shape.ollagen is a natural type of protein in the body that forms the connective tissues that hold skin, bone, tendons, muscle, and cartilage together.
Updated November 30, 2016. Collagen is a protein made up of amino acids that is found in the human body. Here's a look at what collagen is and how it is used in the body. Like all proteins, collagen consists of amino acids, organic molecules made from carbon, hydrogen and oxygen.