Because smart drugs like modafinil, nicotine, and Adderall come with drawbacks, I developed my own line of nootropics, including Forbose and SmartMode, that’s safe, widely available, and doesn’t require a prescription. Forskolin, found in Forbose, has been a part of Indian Ayurvedic medicine for thousands of years. In addition to being fun to say, forskolin increases cyclic adenosine monophosphate (cAMP), a molecule essential to learning and memory formation. 
Microdosing with Ketamine: Ketamine is a general anesthetic that is most commonly used on animals but ironically was originally devised for and tested on humans. Users of ketamine have claimed increased compassion and sensitivity to others, an increase in joy of life, and a reduced fear around death. Finding your ideal microdose of ketamine can be tricky, so it is important to start just a bit below the recommended doses. Taking ketamine sublingually (under the tongue) is the most effective and direct route of administration, and a sublingual microdose is about .75 milligrams per kilogram of body weight, although you can get a significant mood enhancement with as little as 0.2 milligrams per kilogram of body weight. I’d recommend that you never mix ketamine with any drugs that depress breathing such as alcohol, opioids, and tramadol, as it is an extremely calming agent that can produce a heavy sedative effect if you’re not careful or if you combine it with other sedative-like compounds. I’ve found a microdose of ketamine to be best combined with a trip to a float tank, or any other environment that involves sensory deprivation and introspection.
Freshly brewed tea. Two to three cups a day of freshly brewed tea -- hot or iced -- contains a modest amount of caffeine which, when used "judiciously," says Kulze -- can boost brain power by enhancing memory, focus, and mood. Tea also has potent antioxidants, especially the class known as catechines, which promotes healthy blood flow. Bottled or powdered teas don't do the trick, however, says Kulze. "It has to be freshly brewed." Tea bags do count, however.
Discussions of PEA mention that it’s almost useless without a MAOI to pave the way; hence, when I decided to get deprenyl and noticed that deprenyl is a MAOI, I decided to also give PEA a second chance in conjunction with deprenyl. Unfortunately, in part due to my own shenanigans, Nubrain canceled the deprenyl order and so I have 20g of PEA sitting around. Well, it’ll keep until such time as I do get a MAOI.
Herbs and plants have been used for cognitive enhancement for at least 5,000 years in Indian and Chinese medicine, long before the first synthetic nootropic was created. The practice of Indian Ayurvedic medicine includes the use of a group of nootropic plants known as Medhya Rasayana, the four primary plants of which are Mandukaparni, Yastimadhu, Duduchi and Shankhapushpi, though other lesser known plants are also used. One of the most common supplements in Ayurvedic medicine is Brahmi, known scientifically as “Bacopa monnieri” or “B. monnieri “ and more commonly as water hyssop, Thyme-leaved Gratiola, herb of grace or Indian pennywort. It is named after Lord Brahma, the creator God and originator of Ayurveda, and has been used for centuries to treat disorders ranging from pain and epilepsy to inflammation and memory dysfunction. The exact mechanism behind its action is not fully understood, but it is believed to promote antioxidant activity as well as protect neurons in the prefrontal cortex, hippocampus and corpus striatum against cytotoxicity and DNA damage associated with Alzheimer’s. The prefrontal cortex is critical in rational, social and personality behavior, the hippocampus is believed to be the seat of memory and the autonomic nervous system and the striatum play a role in the reward system of action, so the protection Brahmi provides is extremely helpful in preventing the degeneration of many important cognitive faculties. An effective dose ranges from 300 to 450 mg per day. Winter cherry (ashwagandha) is another well-known Ayurvedic supplement that can promote improved cognitive development, memory and intelligence and reduce the effects of neurodegenerative diseases such as Parkinson’s, Huntington’s and Alzheimer’s. The optimal dose is 6,000 mg per day divided into three 2,000 mg doses. Aloeweed (shankhpushpi) is also used in Ayurvedic medicine to improve memory and intellect as well as treat hypertension, epilepsy and diabetes. Effective doses for most neuroenhancing benefits range as high as 40 g per day.
Methylphenidate – a benzylpiperidine that had cognitive effects (e.g., working memory, episodic memory, and inhibitory control, aspects of attention, and planning latency) in healthy people. It also may improve task saliency and performance on tedious tasks. At above optimal doses, methylphenidate had off–target effects that decreased learning.