Pet supplements / best for liver

Best liver supplements, ranked.

SAMe and silybin (milk thistle) for hepatoprotective liver support.

Ranked by PetScored composite (evidence quality 30%, active dose 25%, ingredient clarity 15%, safety and manufacturing 15%, value 15%). This ranking is our opinion under a published rubric, not veterinary advice. A product can rank below a peer because its headline active is weakly evidenced or its dose is hidden, even when it is well made.