Four sigma foods instant reishi 20bag instant reishi mushroom dual extract and herbal blend powder 20 x 3000 mg top 2 benefits of reishi 1 reduce stress 2 improve sleep quality reishi mushroom reishi mushroom ganoderma lucidum the active ingredient of instant reishi is natures ultimate anti stress antidote as an intelligent mushroom reishi may balance an overdriven hormone system and improve sleep quality as an adaptogen reishi may help the body fight against stress caused by demandin