Platelets and vitamin K–dependent clotting factors seal the wound, immune cells clean it, and collagen rebuilds it.
How it works, step by step
Platelets plug the break; clotting factors form fibrin.
Inflammation clears debris and germs.
Fibroblasts lay down collagen (needs vitamin C).
Remodeling strengthens the scar over months.
Evidence & sources
Vitamin C is required to make collagen, and severe deficiency (scurvy) impairs wound healing. Evidence: established. Known: Well documented clinically. Unknown: Benefit of extra vitamin C without deficiency is unclear. Source: NIH Office of Dietary Supplements, Vitamin C — Health Professional Fact Sheet (Current revision).