Sulbutiamine is a synthetic derivative of Vitamin B1, developed to treat chronic fatigue. It's also a potent cholergenic that's known to enhance memory and focus, and it may supercharge mood and motivation and well.
Coluracetam is one of the newer and lesser known racetam nootropics, but it's a favorite for many. Studies suggest that it can enhance cognition and memory, and users report that it also improves concentration, focus, and vision.
Sunifiram is an exciting new development in the world of nootropics. It is a derivative of piracetam, that appears to deliver similar memory, learning and mood enhancing benefits in a more powerful package.