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Glycyl-L-histidyl-L-lysine Based on 3 publication(s) in Google Scholar Glycyl-L-histidyl-L-lysine is a tripeptide consisting of glycine, L-histidine and L-lysine residues joined in sequence

in the mid-1930s [26], (b) produced mainly by fibroblasts [27], (c) to date consists of 28 types, numbered from IXXVIII, constituting about 8090% (type I) and 1015% (type III) in human skin [27], (d) provides tensile strength and elasticity to withstand mechanical forces in everyday activities [26,27,28,29], and (e) mainly composed of the amino acids glycine (Gly), proline (Pro), and hydroxyproline (Hyp), along with its typical triple-helix structure [26, 27, 29]

Korhonen HJ

They share conserved seven -helical structured transmembrane domains, extracellular ligand-binding domains, and carboxy-terminal intracellular domains

To reduce the melasma, you need to break down the excess melanin that formed the patch

doi: 10.1007/s00702-012-0894-8 51 GarritsenO.van BattumE