VetriScience Cell Advance 440 Canine and Feline Immune Health Formula VetriScience Cell Advance 440 Canine and Feline Immune Health Formula, 60 Capsules Contains vitamins A, C, E and B6 to support the immune system and protect against free radical damage The inclusion of enteric coated amino acids l-cysteine, l-lysine, methionine and l-glutathione support antibody production, cellular respiration and antioxidant activity Advanced antioxidant formula for cats and dogs which provides 23 powerful antioxidants/free radical scavengers at levels designed to work with any program on which the animal might currently be