PROVIDES RELIEF FROM HEAD DISCOMFORT: Natrin is an all-natural, plant-based discomfort reliever featuring White Willow Bark, a natural source of salicin. White Willow Bark has been used throughout the centuries for relief from aches. DELIVERS RELIEF FROM BODY ACHES AND DISCOMFORT: This blend features Boswellia Serrata, which inhibits 5-Lox, the enzyme responsible for inflammation. By blocking inflammation before it starts, body aches and muscle soreness are reduced. REDUCES INFLAMMATION NATURALLY: Contains Turmeric Curcumin at a maximum strength of 95% curcuminoids. According to a 2009 study, Curcumin is as effective as some anti-inflammatory treatments.