MycoMedica Oyster 90 capsulesOyster mushroom (Pleurotus ostreatus) contains a large amount of beneficial substances: enzymes, amino acids, vitamins, fatty acids, terpenes and especially polysaccharides. A specific 1,3 D betaglucan called pleuran is particularly important for therapeutic purposes. Although it has been known in Chinese medicine for a long time (at least since the Sung dynasty, when it was called the "divine flower"), its cultivation did not begin to develop until