Copper peptide GHK-Cu is a naturally occurring copper complex of the tripeptide glycyl-L-histidyl-L-lysine. The tripeptide has strong affinity for copper(II) and was first isolated from human plasma. It can be found also in saliva and urine.

Aphidicolin, an antibiotic derived from the mold Cephalosporium aphidicola, is a potent inhibitor of DNA (deoxyribonucleic acid) synthesis, effectively hindering the proliferation of herpes simplex virus.

TN-16 is a microtubule polymerization inhibitor?(IC50 :0.4-1.7 μM).