Tryptophol is primarily used in research settings to study its effects on biological systems, particularly its role in the regulation of sleep and circadian rhythms. It has been investigated for its potential as a sleep-inducing agent due to its structural similarity to serotonin and melatonin, which are key regulators of sleep. Additionally, tryptophol is explored in the context of microbial fermentation processes, where it is produced as a byproduct and can influence the growth and behavior of certain microorganisms. Its antioxidant properties are also of interest in studies related to oxidative stress and cellular protection. In the field of neuroscience, tryptophol is examined for its impact on neurotransmitter systems and its potential therapeutic applications in neurological disorders.