VK-28 is a brain permeable iron chelator with neuroprotection. VK-28 inhibits basal as well as iron-induced mitochondrial lipid peroxidation.

Kisspeptin 13 inhibits glucose-induced insulin secretion with an IC50 of 1.2 nM. Kisspeptin 13 activates the hypothalamic-pituitary-adrenal (HPA) axis, causes hyperthermia, motor behavior and anxiety in rats. Kisspeptin 13 interacts with α2-adrenergic and 5-HT2 serotonin receptors, exhibits antidepressant efficacy. Kisspeptin 13 is an activator for GPR54 and GnRH receptor, which enhances memory and can be used in Alzheimer's disease research.

TAT-amide TFA is a cell penetrating peptide. The cell - penetrating peptides (CPPs) is a kind of access to the short amino acid sequence of different cells.