FabÜ Shrooms Immune (60). It is based on a concentrated extract of two edible mushrooms, Cordyceps and Chaga blended with vitamin D, Vitamin C, copper and zinc to support your immune system and protect your cells from oxidative stress.. Ingredients. Ophiocordyceps sinensis 400mg (Cordyceps 24.5%). Inonotus obliquus 400mg (Chaga 24.5%). Copper Bisglycinate. Cholecalciferol (Vitamin D3). Ascorbic acid. fabÜ SHROOMS IMMUNE was formulated to support your immune system. It has 6 active ingredients - and uniquely - includes concentrated extracts of two edible mushrooms - Cordyceps and Chaga.. These are blended with vitamin D, Vitamin C, copper and zinc which support your immune system and protect your cells from oxidative stress. Cordyceps and chaga mushrooms have been used for thousands of years in Ayurvedic and Traditional Chinese Medicine for immune system support and overall health.