You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Collagen present in skin is and explain in detail?
Collagen * Collagen is the most abundant protein in the human body, have a triple helical structure * At least 28 distinct types of collagen made up of over 30 distinct polypeptide chains have been identified in human tissues * The main fibril forming collagens in skin and bone and in cailage, respectively, are types I and II. Ref:- Harper 30/e; pg num:- 628 , Lippincott 7/e; Pg Num:- 44