Swanson Ultra Polycan® Black Yeast Beta Glucan raises the bar for beta-glucan supplements with proven benefits for strong bones and healthy, flexible joints. Developed and researched in Korea, Polycan is a patented beta-glucan supplement derived from a unique strain of black yeast. Polycan’s polysaccharide composition, including beta 1,3/ 1,6 glucan, provides valuable nourishment for strong bones and the tissues that keep joints working smoothly. Our veggie capsules deliver the same potency used in most clinical trials. p>