Palmitoyl tripeptide-1, yomwe imadziwikanso kuti pal-GHK, ndi peptide yopangidwa ndi mankhwala C16H32N6O5.Ndi mtundu wosinthidwa wa peptide yachilengedwe GHK, yomwe imapezeka mwachilengedwe pakhungu lathu.Peptide yosinthidwayi idapangidwa kuti ipititse patsogolo kupanga kolajeni ndi mapuloteni ena ofunikira kuti alimbikitse thanzi labwino komanso mawonekedwe akhungu.
Kufotokozera kwakukulu kwa mankhwalawa ndikuti kumalimbikitsa kupanga kolajeni.Collagen ndi mapuloteni ofunikira omwe amachititsa kuti khungu likhale lolimba komanso kuti likhale lolimba.Komabe, tikamakalamba, kupanga kolajeni kwachilengedwe m'thupi lathu kumachepa, zomwe zimatsogolera ku maonekedwe a makwinya, kufooka kwa khungu, ndi zizindikiro zina za ukalamba.Palmitoyl Tripeptide-1 imathana bwino ndi izi powonetsa ma fibroblasts pakhungu kuti apange kolajeni yambiri.Izi zimathandiza kubwezeretsa elasticity ndi kulimba kwa khungu, kuchepetsa zizindikiro zowoneka za ukalamba ndikulimbikitsa khungu lachinyamata.