O.P.M.S.® Liquid KratomOptimized Plant Mediated Solutions Liquid.O.P.M.S.’ most sought after Kratom Product.O.P.M.S. Liquid Kratom comes in 8ML bottles, 45 bottles per display box.O.P.M.S. Liquid Kratom is an all natural product.O.P.M.S. has developed a process of extraction matched by no other brand.