Florajen strains are safe, effective, and they survive stomach bile. Competitive products often contain bile-sensitive strains with little or no probiotic value. Research has shown that to be effective, probiotic supplements must contain billions of live cells. Florajen probiotics deliver significantly more live cells per dollar spent, making them a far better value than competitive products. The Florajen family of probiotic supplements, designed by leading bacteriologists, has excelled in efficacy, consistency and customer satisfaction. Herbspro.com is proud to carry the entire range of this fine brand.