Evidence supporting the use of: Collagen
For the health condition: Scars / Scar Tissue

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Collagen is scientifically recognized for its role in wound healing and scar formation. Collagen is a primary structural protein in the skin and connective tissues, and its synthesis is a key part of the body’s natural repair processes. Studies have shown that collagen-based dressings and scaffolds can enhance wound healing by providing a supportive matrix for new tissue growth, facilitating cell migration, and maintaining a moist wound environment. These mechanisms are believed to support the remodeling of scar tissue and may improve the appearance of scars over time. Some clinical studies have demonstrated that topical or injectable collagen can improve scar elasticity, texture, and coloration, particularly in the case of atrophic (depressed) scars or after procedures such as laser resurfacing. However, oral collagen supplements, despite their popularity, have less robust evidence for scar treatment, with most benefits observed in skin hydration and elasticity rather than direct scar remodeling. Overall, while the topical or direct application of collagen has a moderate level of scientific support for improving wound healing and scar outcomes, it is not a guaranteed or stand-alone solution, and results can vary based on scar type, individual response, and application method.

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