I've just recently started taking Citicoline. It's supposed to improve brain function and also help you sleep better. I'm sleeping better already. I don't know if I am becoming more intelligent yet, it's too early to say. Just wondering if anyone else uses it, and what has it done for you? Here's the bumf: Citicoline [stabilized CDP Choline (cytidine 5diphosphocholine)] is a naturally occurring intermediate involved in the synthesis of phosphatidylcholine, a major constituent of the grey matter of brain tissue (30%).* Citicoline consumption promotes brain metabolism by enhancing the synthesis of acetyl-choline, restoring phospholipid content in the brain and affecting neuronal membrane excitability and osmolarity.* Studies suggest that CDP-choline supplements increase dopamine receptor densities, and suggest that CDP-choline supplementation can ameliorate memory impairment caused by environmental conditions. Preliminary research has found that citicoline supplements help improve focus and mental energy and may possibly be useful in the treatment of attention deficit disorder. Citicoline has also been shown to elevate ACTH independent of CRH levels and to amplify the release of other HPA axis hormones such as LH, FSH, GH and TSH in response to hypothalamic releasing factors. These effects on HPA hormone levels may be beneficial for some individuals but, may have undesirable effects in those with medical conditions featuring ACTH or cortisol hypersecretion including, but not limited to, PCOS, type II diabetes and major depressive disorder.