Let's start with the basics. If you're new to Study Drugs and Nootropics, there is going to be a degree of trial and failure you're going to have to play with to see which stack will work great for you. Because some brain nutrients do not need strict timing to maximize their effect and are usually bought in health food stores, they're often the best route for beginners.
Choline & Inositol: Popularly recognized for their synergistic effects, Choline and Inositol are two of the most basic nootropics. In combination, the pair plays a large part in healthy neurotransmitter function. Choline has a key role in the production of Acetylcholine, a neurotransmitter which studies recommend to enhance memory and has been linked to the prevention of Alzheimer's disease. You can also know about stacking nootropic ingredients by browsing the web.
Availability & Dosing: As mentioned earlier, Choline & Inositol are two of the most basic supplements for cognitive function. So much so that they are typically sold concurrently and can be found at nearly any local health food retailer. Unlike Inositol, Choline is not a commonly occurring nutrient and must be obtained through diet.
One thing to examine is that the word 'drugs' has always brought with it a very negative connotation, and it's easy to know why with the destructive nature of most 'street drugs' and even some pharmaceutical drugs. What's important to remember is that nootropics are meant to enhance, not diminish, and if taken correctly can drastically improve grades and just about every other aspect of your life.