Hydrolyzed collagen is collagen broken down into smaller particles, making it easier for the body to absorb. It can help repair skin and reduce joint pain, as joint cartilage contains collagen, and joint pain is often caused by collagen loss. Studies show that hydrolyzed collagen can help strengthen joints and alleviate pain caused by conditions like osteoarthritis. A 2010 study suggested that hydrolyzed collagen might play a role in preventing and treating osteoporosis. A 2018 study found that taking 5 grams of collagen peptides daily for a year increased bone mineral density and improved markers of bone formation and reduced bone degradation. Collagen supplements may also benefit the skin by reducing certain signs of aging and improving hydration and elasticity. While some products claim that collagen can improve skin structure through creams, these claims are not backed by research. Overall, hydrolyzed collagen shows potential in joint health and skin care, but more research is needed to confirm its effectiveness.