Kala Health Arthrix Bio C-II contains the same ingredients as Arthrix Plus, with Hyaluronic Acid as extra ingredient. Artrhrix Plus HA makes the difference by combining no less than SEVEN effective, top quality ingredients manufactured in the United States. You may find You may find the brand names of the ingredients under the tab 'Ingredients'. These brand names guarantee the highest quality and the highest biological efficacy. OptiMSM is the purest MSM available, purified by multiple distillation. Regenasure glucosamine is of plant-derived origin, manufactured by fermentation of (non-gmo) corn which makes shellfish allergens absent in this formula. Chondropure chondroïtin is derived from bovine trachea. The molecules are relatively small (< 10.000 daltons), which is important for good absorption. B-2Cool Undenaturated Collagen is a new and sensational ingredient, effecvtive in very small quantities. Vitamin C (Ester-C) and manganese play a role in the building of joint cartilage. Ocean water concentrate (Aquamin) contains all more than 80 minerals and trace elements in ionic form. Arthrix Bio C-II is a great tasting formulation for dogs and cats, they love it! Arthrix Bio C-II is a complementary feed. It is safe in use and can be combined without any problems with other supplements and products.