However, if you decide to return your product, I must tell you the story of my first purchase of Threelac. I took the product for 4 weeks when I decided that the changes in my symptoms were pretty minimal. I told my wife that I was returning the product to get the refund. However, as fate would have it, I got too busy with work and moving, and I didn't get around to returning it. Since I still had 30 more days to return the product for a full refund, I decided to give it a chance for another week or two. Best decision of my life. After week 5 and 6, I began seeing changes in my body. First, I started getting better sleep. Then I started getting rashes on my body (which by the way is a GREAT thing, because it means the product is working and the candida are dying off!) I have since then decided to take Threelac on an ongoing basis (most likely for life, or until another superior product takes its place). I mean, to ensure a healthy digestive tract for less than $1 per packet, I can't think of a better cost effective safeguard to overall health. I personally take 1-2 packets of Threelac per day. Once you take it for a while, you will understand why.