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.

Adynerin is a natural steroid found in the herbs of Nerium oleander.

A2ti-1 is a highly selective inhibitor of annexin A2/S100A10 heterotetramer (A2t) (IC50: 24 μM) that inhibits ARV-mediated activation of Src and p38 mitogen-activated protein kinase (MAPK).