Tyrosine (Examine.com) is an amino acid; people on the Imminst.org forums (as well as Wikipedia) suggest that it helps with energy and coping with stress. I ordered 4oz (bought from Smart Powders) to try it out, and I began taking 1g with my usual caffeine+piracetam+choline mix. It does not dissolve easily in hot water, and is very chalky and not especially tasty. I have not noticed any particular effects from it.
The next cheap proposition to test is that the 2ml dose is so large that the sedation/depressive effect of nicotine has begun to kick in. This is easy to test: take much less, like half a ml. I do so two or three times over the next day, and subjectively the feeling seems to be the same - which seems to support that proposition (although perhaps I’ve been placebo effecting myself this whole time, in which case the exact amount doesn’t matter). If this theory is true, my previous sleep results don’t show anything; one would expect nicotine-as-sedative to not hurt sleep or improve it. I skip the day (no cravings or addiction noticed), and take half a ml right before bed at 11:30; I fall asleep in 12 minutes and have a ZQ of ~105. The next few days I try putting one or two drops into the tea kettle, which seems to work as well (or poorly) as before. At that point, I was warned that there were some results that nicotine withdrawal can kick in with delays as long as a week, so I shouldn’t be confident that a few days off proved an absence of addiction; I immediately quit to see what the week would bring. 4 or 7 days in, I didn’t notice anything. I’m still using it, but I’m definitely a little nonplussed and disgruntled - I need some independent source of nicotine to compare with!
The hormone testosterone (Examine.com; FDA adverse events) needs no introduction. This is one of the scariest substances I have considered using: it affects so many bodily systems in so many ways that it seems almost impossible to come up with a net summary, either positive or negative. With testosterone, the problem is not the usual nootropics problem that that there is a lack of human research, the problem is that the summary constitutes a textbook - or two. That said, the 2011 review The role of testosterone in social interaction (excerpts) gives me the impression that testosterone does indeed play into risk-taking, motivation, and social status-seeking; some useful links and a representative anecdote:
Seriously Man, you obviously have a deep love of God and the teachings of Jesus. You’re not being watched and judged like some kindergartener to make sure you obey the teacher. You were given a mind and free will to explore the world both physical and spiritual. If you do it in the spirit of God’s love and the love of four fellow man, AND YOURSELF….don’t forget God loves you too, then the only darkness here is the judgement you’re putting on yourself and your own actions. Jesus said the kingdom of heaven is within…..he meant within YOU, each of us. Your looking without and asking is it OK? If it brings you closer to the light of the spirit it’s OK, if you make a mistake, it’s OK. This very wise woman, brimming with God’s love said to me one day, with all the love and joy I’ve ever seen in someone’s heart………” I just had the most incredible realization.” ” What, I said” ” God forgives us for our sins before we even commit them” My hair immediately stood on end in response to the deep truth of this which to me is ,,,,,,,,,GOD, the UNIVERSAL SPIRIT WHICH IS ALL CREATION DOES NOT JUDGE” Judgement is in the prevue of Man in an effort to control other men. You are free, and always have been and always will be. You are loved, always have been and always will be. It just the way things are, it’s called perfection.

"More and more of our young people are using these drugs to help them work. They've got their laptop, their iPhone, and their Adderall. This rising generation of workers and leaders may have a subtly different style of thinking and working, because they're using these drugs or because they learned to work using these drugs, so that even if you take the drugs away they'll still have a certain approach. I'm a little concerned that we could be raising a generation of very focused accountants."
An unusual intervention is infrared/near-infrared light of particular wavelengths (LLLT), theorized to assist mitochondrial respiration and yielding a variety of therapeutic benefits. Some have suggested it may have cognitive benefits. LLLT sounds strange but it’s simple, easy, cheap, and just plausible enough it might work. I tried out LLLT treatment on a sporadic basis 2013-2014, and statistically, usage correlated strongly & statistically-significantly with increases in my daily self-ratings, and not with any sleep disturbances. Excited by that result, I did a randomized self-experiment 2014-2015 with the same procedure, only to find that the causal effect was weak or non-existent. I have stopped using LLLT as likely not worth the inconvenience.
Brain consumption can result in contracting fatal transmissible spongiform encephalopathies such as Variant Creutzfeldt–Jakob disease and other prion diseases in humans and mad cow disease in cattle.[10] Another prion disease called kuru has been traced to a funerary ritual among the Fore people of Papua New Guinea in which those close to the dead would eat the brain of the deceased to create a sense of immortality.[11]
Last spring, 100 people showed up at a Peak Performance event where psychedelic psychologist James Fadiman said the key to unleashing the cognition-enhancing effects of LSD — which he listed as less anxiety, better focus, improved sleep, greater creativity — was all in the dosage. He recommended a tenth of a “party dose” — enough to give you “the glow” and enhance your cognitive powers without “the trip.”
Nicotine has been shown to improve working memory, and research has also demonstrated that oral consumption of nicotine enhances memory consolidation in perceptual learning by enhancing the efficacy of nicotinic acetylcholine receptors and thereby enhancing the overall cholinergic system, which modulates memory formation. In other words, nicotine consumption improves the efficiency of acetylcholine (a neurotransmitter) receptors and, thus, improves the part of the nervous system that regulates healthy memory function. Some research also indicates that psychiatric populations suffering from cognitive deficits (such as patients suffering from schizophrenia) may enjoy even greater neuroprotection from nicotine consumption than healthy individuals. You may be concerned about using nicotine given its potential as an addictive substance. Well, nicotine plays a dual role in the brain by simultaneously promoting addiction and enhancing cognition. In fact, the processes are closely linked through the pathways by which they work. That means that when it comes to dosing nicotine, it’s all about moderation. Because nicotine can be easily abused and has high addictive potential, when using nicotine for cognitive enhancement, you must be precise with dosage and conscious of the amount you use. Studies have shown that moderate doses of nicotine typically produce cognitive enhancement, but very high doses can actually impair cognitive performance. A moderate dose would look something like 2-4 milligrams administered over 20-30 minutes, a dose easily available in the form of nicotine gum or spray. Later in this article, I’ll fill you in on my own personal dosage and use of nicotine.
Or in other words, since the standard deviation of my previous self-ratings is 0.75 (see the Weather and my productivity data), a mean rating increase of >0.39 on the self-rating. This is, unfortunately, implying an extreme shift in my self-assessments (for example, 3s are ~50% of the self-ratings and 4s ~25%; to cause an increase of 0.25 while leaving 2s alone in a sample of 23 days, one would have to push 3s down to ~25% and 4s up to ~47%). So in advance, we can see that the weak plausible effects for Noopept are not going to be detected here at our usual statistical levels with just the sample I have (a more plausible experiment might use 178 pairs over a year, detecting down to d>=0.18). But if the sign is right, it might make Noopept worthwhile to investigate further. And the hardest part of this was just making the pills, so it’s not a waste of effort.
Brain enhancing drug – the steroids of the mental world, these are compounds that can be both artificial or natural that are not recommended for casual consumption. If taken over a long period of time, they can and will result in permanent and debilitating damage, and if taken wrongly, they can and will result in injury, illness, and death. So far from being the best brain pill that they loop around and punch the actual best brain pill in the face.
We reached out to several raw material manufacturers and learned that Phosphatidylserine and Huperzine A are in short supply. We also learned that these ingredients can be pricey, incentivizing many companies to cut corners.  A company has to have the correct ingredients in the correct proportions in order for a brain health formula to be effective. We learned that not just having the two critical ingredients was important – but, also that having the correct supporting ingredients was essential in order to be effective.
Beans. Beans are "under-recognized" and "economical," says Kulze. They also stabilize glucose (blood sugar) levels. The brain is dependent on glucose for fuel, Kulze explains, and since it can't store the glucose, it relies on a steady stream of energy -- which beans can provide. Any beans will do, says Kulze, but she is especially partial to lentils and black beans and recommends 1/2 cup every day.

Bacopa Monnieri is probably one of the safest and most effective memory and mood enhancer nootropic available today with the least side-effects. In some humans, a majorly extended use of Bacopa Monnieri can result in nausea. Amongst AlternaScript’s, primary products is Optimind, a nootropic supplement which largely constitutes of Bacopa Monnieri as one of the main ingredients.

The main concern with pharmaceutical drugs is adverse effects, which also apply to nootropics with undefined effects. Long-term safety evidence is typically unavailable for nootropics.[13] Racetams — piracetam and other compounds that are structurally related to piracetam — have few serious adverse effects and low toxicity, but there is little evidence that they enhance cognition in people having no cognitive impairments.[19]