Not for my Lab-sorry
I bought Luposan for my Lab (9).However he has had fungal and yeast problems between his paw pads in the past, and after starting him on Luposan it flared up again, quite bad and I had to take him off it. It did improve his coat but his yeast problems disimproved. Put him on Burns Dry food since, and he is perfect again. Doesnt work for every dog I suppose.