Liquid Hepato by Rx Vitamins for Pets might work to promote optimal liver function in your pet‚ which is important because your pet's liver plays a key role in removing toxins from his or her blood stream. This product contains a blend of ingredients that may offer support for canine and feline liver health. For instance‚ Liquid Hepato provides an herb called milk thistle extract. Notably‚ silymarin—which is the active compound in this herb—could potentially act to stimulate the growth of new liver cells while also working to protect existing cells from damage.