1 of my cats had bad skin problems and was alergic to pollen, after changing her food and few cortizone shots at high cost, i tried royal canin fur and skin biscuits.. this was 4 months back and her skin looks much better now. the vet said why they cost more..but a 4k bag lasting 3 months, compared to normal biscuits by weight, is actually a good deal. Fast delivery from order to doorstep & very happy with all my items