B12 transdermal patch For instance, acetylcholine is the primary nerotransmitter related to information processing. Acetylcholinerase is responsible for the breakdown of acetylcholine. There are multiple supplements that will increase acetylcholine production, among them CDPCholine, alphaGPC, DMAE, centrophenoxine and Acetyl L Carnitine. If you double up, you simply hit a ceiling on the amount of acetylcholine available. Also, many nootropics such as huperzine A inhibit acetylcholinerase. Inhibiting acetylcholinerase has the same effect as producing more acetylcholine. piracetam http://www.ceri.com/noot.htm take choline with piracetam cdpcholine sulbutiamine tends to prevent mental fatigue synthesized version of thiamine (crosses blood-brain barrier better than thiamine) thiamine reserves play a role in mental endurance broken down into thiamine parts (vitamin B1) pyritinol increases alertness, energy and ability to concentrate super version of vitamin B6 picamilion GABA reduces nervous excitement GABA cannot cross the blood-brain barrier picamilion is a synthesis of niacin (vitamin B3) and GABA that was designed to cross the blood-brain barrier. picamilion is broken down to niacin and GABA aniracetam derived from piracetam, but has different effects lion's mane increases production of nerve growth factor (NGF) NGF is responsible for determining the rate at which new brain cells are produced nobel prize :) fish oil two omega-3 fatty acids: EPA and DHA phosphatidylserine synthesized from uridine, choline and DHA phosphatydlcholine and phosphatidylserine are essential components of every nerve cell membrane bacopa brain specific B1, B3 and B6 sulbutiamine pyritinol picamilion / picamilon vitamin B deficiency idebenone pregnenolone cerebrolysin theanine vinpocetine (vasodilator) taurine SAMe vital for methylation reactions "Methylation reactions are necessary to transform the 8 amino acids to 100 specific function amino acids" galantamine - acetylcholinerase inhibitor deaths: http://www.tga.gov.au/adr/aadrb/aadr0602.htm#1 melatonin vitamin B12 magnesium deprenyl + PEA combination (recreational?) creatine (a nootropic for vegetarians?) vyvanse (an amphetamine) methylcobalamin inositol AlphaGPC (for choline) ALCAR Arginate (neurite growth) flax seed oil Acetyl-L-Carnitine L-Glutamine Choline Bitartrate Ginkgo (Leaves) Extract Eleuthero (Root) Extract Asian Ginseng (Root) Extract Ashwagandha (Root) Extract Gotu Kola (Leaves) Powder Royal Jelly Vinpocetine Huperzine Thymus Dimethylaminoethanol (DMAE) Bitartrate centrophenoxine (for lipofuscin removal) NAC di-methyl-glycine phenylalainine taurine ALA methylcobalamin produces SAMe for you:w diminishes homocysteine levels increases energy, improves alertness, decreases the need for sleep, increases the quality of sleep vinpocetine nicotine patch for focus http://www.imminst.org/forum/Nicotine-patch-for-focus-a-log-t23915.html selegiline pseudoephedrine ritalin donezepil modafinil hydergine phenytoin digitoxin coumarin gamma-hydroxybutyrate encephabol (pyritinol HCl) huperzine alpha-glycerylphosphorylcholine cell membranes: phosphatydlinositol phosphatydlcholine phosphatydlserine inositol glycosphingolipids - lipids with single sugar molecules attached acetylcholine levels: CDP choline Alpha GPC choline ACHe inhibitors commercial products: biotests powerdrive scivation's neurostim