EXCLUSION CRITERIA Subjects who present with clinical depression. Subjects showing evidence of dementia. Clinically relevant abnormalities in medical history or examination. Subjects who have participated in a clinical study within 3 months prior to the start of the study. History of drug and/or alcohol abuse. Subjects who smoke more than 10 cigarettes per day. Subjects who in the opinion of the Investigator are heavy users of other tobacco or nicotine products (e.g. snuff, chewing tobacco, nicotine patches, nicotine g um, etc.). Subjects who have a history of food and/or drug allergies relevant to the study compound. Clinically relevant deviation from normal of any finding during pre-study medica l screening. Subjects who are unable to perform the cognitive tests. Subjects currently taking a cognition enhancing substance, including any Ginkgo, ginseng or guarana product. Any subject regularly taking a medication who might stop doing so at some time d uring the active dosing phase. Pregnant or lactating women or female subjects of child-bearing potential not us ing adequate means of birth control (condoms, contraceptive pills, IUDs, sterili sation). Subjects already taking other multi-vitamin products during the last 2 weeks. Healthy subjects who are regularly taking drugs which act on the Central Nervous System (CNS).