Achieve® Pro with Cryptex® provides high quality targeted proteins to maintain gut health, glycine and beneficial microorganisms to promote optimal intestinal health; pre-biotic inulin shown to promote growth of beneficial bacteria and decrease the amount of pathogens such as E. coli and clostridium in the intestine; Cryptex, a proprietary matrix of polysaccharides and yeast extract to maintain gut health and integrity, and bone charcoal to help soothe the gut during times of stress. Highly palatable with a sweet smell. No withdrawal period required.