Edith, I use Align and most times I get it at Costco or if I can get a good deal, at CVS. At Costco, it's about 55.00 for 12 week supply. It's much cheaper than VSL #3 DS. Another thing you might want to do is check the VSL website to see if you qualify to get it free or at a reduced price. It's based on income. So far, the Align has worked for me.