Aloe Fuzion is aloin free, so it does not act as a laxative like whole leaf aloe products. (globalhealingcenter.com)
Like its human counterpart, the cat bitter taste receptor Tas2r43 was activated by bitter compounds aloin (found in the aloe plant) and denatonium (used to deter children and pets from consuming chemicals such as antifreeze) but responded differently to the compounds. (sciencedaily.com)