The original, patented form of stabilized, bioavailable silica for plants. Often imitated never duplicated. Unlike other silica products, we work with the best possible silica matrix (patented) to enable superior absorption. Power Si is a proprietary mix containing highly bioavailable micro and macro nutrients. It is a pure, highly concentrated formula with fast visible effects. Silicon is considered the limiting factor for optimal crop yield and quality. Power Si is the fastest way to deliver silica to your plants.