Acetylarginyltryptophyl Diphenylglycine Goed Peptide Anti-aging Kalmerend Acetylarginyltryptophyl Diphenylglycine at a glance Synthetically produced cell-communicating tetrapeptide Promotes youthful skin by visibly restoring firmness and curbing sagginess Created through the reaction of acetic acid, arginine, phenylglycine and tryptophan Sold as Relistase® when combined with glycerin Acetylarginyltryptophyl Diphenylglycine description Acetylarginyltryptophyl diphenylglycine is a synthetically made tetrapeptide that’s created when acetic acid reacts with the amino acids arginine, phenylglycine and tryptophan. It’s an anti-aging signaling peptide that’s said to help inhibit skin surface enzymes that break down proteins, like collagen. That’s how this tetrapeptide promotes a youthful, firmer look. Acetylarginyltryptophyl diphenylglycine was created by Lipotec S.A.U. and, when combined with glycerin, is sold under the name Relistase®. The recommended usage level is 4% in solution with glycerin, with the peptide itself being a small percentage of this blend (it doesn’t take much of it to help skin).