A drink for people of all ages who want to nourish their brains, whether for studying, working, or to increase efficiency to make their brains fresher on an important day. Peptin 4000 comes in a 100 ml. size. - Name: PEPTEIN Brain Nourishing Drinkml x 6 - Brand: PEPTEIN - Unit Amount: 6 unit(s) How to Preserve: Store in a cool, dry place away from direct sunlight.