I purchased this product for a child who is fatally allergic to dairy, so it was extremely important that I confirm that dairy was not used to produce the probiotics.No one ever answers the telephone. I called at least six times and left messages three times. I also emailed them. I explained the seriousness of the inquiry in all the messages and email. That was about a month ago -- and I still haven't heard back from them.I won't do business with people who provide such a lack of customer service. How can I trust the quality of the product?