Camelid blood products their peptide isolates and synthetic sequences for wound fluid elevated protease enzyme inhibition. The present invention provides evidence that Metalloprotease and other Protease enzyme (e.g. elastase) peptide inhibitors are present in camelid serum/plasma can be used alone or combined with other agents to enhance healing in the treatment of chronic wounds and burns by inhibiting elevated wound fluid protease activity. These protease enzymes inhibitors present in camelid serum/plasma can be demonstrated to inhibit chronic non-healing wound fluid proteolytic enzymes by the use of wound fluid assay kits specifically designed to measure wound fluid protease activity. The serum/plasma and isolated or synthesised peptides of this patent have use in the treatment of a range of cosmetic skin indications and diseases such as disorders of the gastrointestinal tract, cardiovascular conditions and specifically in the treatment of wound healing and burns and in scar tissue healing.