This product (by Bluebonnet) claims that there are 3.3 billion ACTIVE Lactobacilli in a spoon. The best established test for ACTIVE Lactobacilli is to give them substrate (warm milk) and let them grow over night. Test Result: A spoon of powder was mixed with warm milk (37'C) did NOT produce any growth (fermentation) overnight!. That means that Bluebonnet is selling us Cellulose + FOS (fructooligosaccharides) with a taste of baked Jerusalem Artichoke flour. Will never buy from Bluebonnet again. Now I am testing one after another different vendors. Already tested Nature's Bounty 'product' being the same. Hope there will be a product for real?!

This is my favorite probiotic!<br />WARNING: I am extremely disappointed that this product was not sent with a cold pack. The bottle itself says to keep refrigerated. I would assume that is enough of a signal for the product to be kept refrigerated. I, unfortunately, will no longer be buying this product from Amazon unless it is shipped with a cold pack. Otherwise, my purchase is useless.

Not cold upon arrival.

this really helped with getting our newborn's digestive tract on point! Our pediatrician recommended to dab a little bit on the end of her pacifier, once or twice a day - and it really helped with gas and digestion.

Arrived warm in the mail. Couldn't get it to grow. Needs to be shipped with cool packs.

The product itself is great, but they shipped this without keeping it cold. This product must be kept cold in order for the probiotics to be kept alive. Very disappointed and mad that I spent money on this.