Sleep & StressWhat is Orexin A?Orexin A is a wake-promoting neuropeptide. Loss of orexin neurons causes narcolepsy.Mentioned PeptidesOrexin AMore Sleep & Stress questionsWhat is DSIP used for?Does DSIP make you sleepy immediately?What is Selank used for stress?What is Orexin B?Can DSIP be combined with melatonin?What is ACTH 1-39?Related PeptidesOrexin BSemaxSelankOxytocinEpitalonCerebrolysinPopular ComparisonsVIP vs Orexin AOrexin A vs Orexin BDSIP vs Orexin ARelated Research CategoriesBrain & Cognitive SupportSleep & Stress SupportRelated QuestionsWhat is DSIP used for?Does DSIP make you sleepy immediately?What is Selank used for stress?What is Orexin A?What is Orexin B?Can DSIP be combined with melatonin?