C ollagen for skin 1. What is collagen? Collagen is a protein produced by the connective tissue in all animals and tissues. It comes from keratin fibres that are formed from keratin, a substance made of amino acids. Collagen is a fibrous protein with strands of keratin protein that connect to form long, flexible strands of protein called fibrillary strands. Collagen helps strengthen bones, skin and connective tissue. Collagen is one of the most abundant proteins in the body and plays many roles, especially in the skin. 2. How does collagen for skin help us? Collagen makes up the most abundant protein in our face and has hundreds of different functions. It acts as an insulator. As such, it protects your skin against the harsh environment and weather conditions to keep it healthy. When exposed to wind and water, it helps keep pores open to allow air out. And since collagen also improves blood circulation, it can lower cholesterol levels and improve circulation. If you su...