The only delicious and all-natural nighttime recovery solution available on the market today. :NOCTURNE is the delicious only all-natural custom-blended nighttime recovery solution made specifically for when you sleep! After a long day, enjoy the creamy natural chocolate flavor and ultra-pure whey protein isolate designed to soothe tired muscles and help you repair overnight. Tryptophan, a natural essential amino acid (long been known to increase the levels of melatonin and serotonin) will actually help lull you to a restful night of deep sleep after a long day of activity.