Our probiotics are dairy-free (this should appear on the labels as well) - so they are also free of lactose. They are tested for milk allergens and tests below the level of quantification, which is 2.5ppm for the type of test that is used.
All of our probiotics are formulated to be free of common allergens. No milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat/gluten, corn or soy are used. The probiotics also do not use yeast (except Saccharomyces Boulardii - this is a probiotic yeast species used only in the standalone Saccharomyces Boulardii product). We are working on conducting allergen testing on all of the products in the Seeking Health line to verify that none of the Major Food Allergens (Milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, and soybeans) are present in the finished product. The Knowledge Base, product pages, and labels will be updated accordingly as results are returned. Stay tuned!