Royal Canin Canine Urinary U/C Low Purine Dry 14kg Key benefits: Urate Control - Low purine proteins (e.g. wheat flour and egg) combined with production of alkaline urine lead to a reduced risk of urate stones. Cystine Control - A combination of moderate quantities of high quality proteins and restricted sodium levels reduces the risk of formation of cystine stones. Skin Barrier - High levels of biotin, niacin and pantothenic acid, combined with the zinc-linoleic acid complex, reduce transepidermal water loss and support the skins barrier function. Antioxidant Complex - The synergistic antioxidant complex (vitamin E, vitamin C, taurine, lutein) neutralises free radicals and helps maintain health of DNA, cells and the immune system. A patented synergistic complex of antioxidants to help neutralise free radicals.