Now 4 X 6 Acidophilus promotes positive probiotic balance and maintains healthy intestinal flora. Designed to supply a balanced spectrym of beneficial bacterian found in human intestinal tracts. 4 billion potency and 6 probiotic strains. Recommended Use: Take 1 capsule 1 to 2 times daily between meals or on an empty stomach, or as directed by a healthcare professional. Refrigerate to maintain potency.Now 4 X 6 Acidophilus Facts: 1 veg capsule contains: Blend of Probiotic Bacteria 4 billion CFU Lactobacillus acidophilus (La-14) Bifidobacterium lactis (Bl-04) Bifidobacterium longum (Bl-05) Streptococcus thermophilus (St-21) Lactobacillus bulgaricus (Lb-87) Lactobacillus paracasei (Lpc-37) Other Ingredients: Microcrystalline Cellulose, Hypromellose (cellulose capsule), Stearic Acid (vegetable source) and Silicon Dioxide. Refrigerate to Maintain Potency.