Researchers found that a substance in mother’s milk might be responsible for the state of relaxation newborns experience after nursing. This inspired the discovery of a unique milk-derived protein, alpha-casozepine, with proven calming properties. Alpha-casozepine promotes a sense of relaxation and contentment. It is non-sedating and all natural. Zylkene® comes in a convenient single oral powder administration 8 gram pouch (2000 mg). The packaging for the 8 gram pouch comes in 20 pouches per box.