Palmitoyl Tripeptide-8 Excellent Peptide Anti-âge Palmitoyl Tripeptide-8 description A plant-derived or synthetic peptide made from combining the fatty acid palmitic acid with tripeptide-8. Paula’s Choice Skincare uses a synthetic version of this peptide consisting of the amino acids arginine, histidine and phenylalanine.The number at the end of the name refers to the chemical structure of the peptide and the type of the amino acids the chain contains. Related ingredients: Peptides