GnRH-I is a small 10 amino acid long peptide (decapeptide) from the hypothalamus,It is also known as luteinizing hormone releasing hormone (LHRH), is a key molecule in the regulation of reproduction in vertebrates. GnRH, a decapeptide, is produced by neurons in the medial basal hypothalamus (MBH) and secreted in a pulsatile manner into the cardiovascular system.

D-Pyroglutamic acid (PCA) is a cyclic derivative of glutamic acid physiologically present in mammalian tissues. It has been shown that PCA releases GABA from the cerebral cortex and displays anti-anxiety effects in a simple approach-avoidance conflict situation in the rat.

Ys-II (Compound 1) is a spirostanol glycoside that can be isolated from the stem of Yucca elephantipe. Ys-II has antifungal activity against the growth of Candida albicans and Cryptococcus neoformans (IC50: 5 and 6 μg/mL respectively).