Identification, characterization, and structure activity relationship of the ASIC3 selective peptide WRPRFa Communications Chemistry The wound scratch assay results of control, GHKCu monomers, and GHKCu Download Scientific Diagram TOLERANCE & TACHYPHYLAXIS Not too big. Not too small. Because of their intermediate size, macrocyclic peptides combine the potency and precise targeting of an antibody or biologic therapy with the stability and ease of administration of a TOLERANCE & TACHYPHYLAXIS The potential of GHK as an anti aging peptide Dou Aging Pathobiology and Therapeutics