Collagen fibers are strong, flexible protein structures found in various tissues throughout the body, including skin, bones, tendons, and cartilage. They provide support and strength, helping to maintain the integrity and elasticity of these tissues. Collagen is the most abundant protein in the human body, making up about 30% of its total protein content. These fibers are produced by specialized cells called fibroblasts and are composed of long chains of amino acids. Over time, the production of collagen can decrease, leading to signs of aging such as wrinkles and joint pain. Maintaining healthy collagen levels is essential for overall tissue health and resilience.