Futurebiotics Advanced Colloidal Silver. Futurebiotics Advanced Colloidal Silver is a high-quality, chemical-free elemental Silver dietary supplement that consists of ultra-fine, microscopic Silver particles suspended in pure, deionized water for easy absorption by the body. The colloidal form is one of the most bioavailable forms of supplementation and is the perfect choice for individuals who dislike or have difficulty swallowing pills or capsules. Advanced Colloidal Silver combines elemental Silver with pure, deionized water and a protein polymer from milk to support effective utilization. Futurebiotics Advanced Colloidal Silver Elemental Silver in deionized water Supplies 10 ppm (50 mcg) of Silver per teaspoon Special light-filtering glass packaging Advanced Colloidal Silver supplies 10 ppm (parts per million) of elemental Silver per teaspoon, which is equivalent to 50 mcg of Silver per teaspoon. Special cobalt blue glass packaging helps maintain product potency and integrity by filtering out light and glass packaging blocks oxygen from degrading bottle contents.