Our signature synbiotics (Probiotics, Prebiotics, Postbiotics) with a superior method of preparation. OSN Active Guard is uniquely fermented with 75 fruits and vegetables and 17 strains of cultured friendly bacteria for 3 years at Kibi-heights which is 300m above sea level, in Okayama, Japan. The ingredients are harvested during the best season at peak nutritional value. This extended fermentation, spanning all four seasons, enhances the viability of friendly bacteria, resulting in a fermented extract rich in minerals, vitamins, enzymes, and other pre-digested food ingredients, ensuring easy absorption by the body. read full review »