(Lentinus edodes / Shiitake ). A 2015 study showed that regular consumption of shiitake may contribute to improved immune function. SHIITAKE 500 mg N60. Ingredients: Shiitake (Lentinus edodes) cap powder, gelatin, emulsifier magnesium stearate, anti-caking agent silicon dioxide, thickener microcrystalline cellulose (plant-based).