An improved biocompatible composition consisting of physiologically stable beads or particles carried in a lubricative suspension, solution, other fluid or gel. The composition is intended to be delivered into the body through a small-bored needle, cannula, or other catheter into a tissue site for the purpose of augmenting the tissue. In particular, the composition is useful for augmenting tissue in the area of the cardiac orifice of the stomach to reduce gastric reflux, in the area of the internal or external sphincter of the anal canal to reduce fecal incontinence or in the area of urethral tissue for the purpose of treating urinary incontinence.