. . "51-35-4"@en . . . . . . "Hydroxyproline"@en . . . . "Humans and other mammals"@en . . . . "Used in France as a combination product for the treatment of small, superficial wounds."@en . . . . . . . . . . . "trans-4-Hydroxy-L-proline"@en . "experimental"@en . . . . "Hydroxyproline is a neutral heterocyclic protein amino acid. It is found in collagen and as such it is common in many gelatin products. Hydroxyproline is mostly used as a diagnostic marker of bone turnover and liver fibrosis. Therapeutically, hydroxyproline is being studied as an an experimental medicine but is approved in France as a combination topical gel product called Cicactive for small, superficial wounds. "@en . . . . . . . . . . "L-Hydroxyproline"@en . "Adams, Elijah; Goldstone, Alfred. Hydroxyproline metabolism. II. Enzymic preparation and properties of D1-pyrroline-3-hydroxy-5-carboxylic acid. Journal of Biological Chemistry (1960), 235 3492-8."@en . "approved"@en . . .