Let's talk turkey. Strengthening the health of your immune system is a priority. That's where Organic Turkey Tail Mushroom powder from the fruiting body comes in. Krestin (PSK) and Polysaccharide Peptide (PSP) are two types of polysaccharopeptides found in turkey tail mushrooms and are potent promoters of your immune response by both activating and inhibiting specific types of immune cells and by suppressing inflammation. Turkey Tail mushrooms have long been researched for their medicinal properties. They're packed with potent antioxidants and prebiotics that provide an impressive range of health benefits and are a popular natural treatment to promote health. With fruiting bodies being substantially more effective than mycelium, Sunwarrior Organic Turkey Tail from fruiting body offers you the best.