I have used Align for a couple years since it came out and I got a sample from my doctor. My new doctor was happy to see I was still taking it - actually, he said best thing I could do for myself. I know there are lots of good probiotics out there - but Align works for me.
I get my on ebay. Usually, find a seller for like 2 or 3 months supply. Anything under $1 a pill is pretty good - just read through them all and check out the seller. I have had no problems.
ElaineNY