High-dose licks for joint function in cats Doppelherz for Animals Joint Complex for cats offers optimally dosed active ingredients in the form of delicious licks to support joint metabolism (e.g., in cases of osteoarthritis). It contains omega-3 fatty acids, vitamin E, green-lipped mussel, rosehip, glucosamine, and chondroitin, which together promote joint function and collagen formation. For maintaining healthy and elastic joints. Note: No added sugar, colorings, or artificial flavorings.