We have two brothers (westies) that always get winter noses, this year we gave one of them a mixture of 6c of Ferrum Met (iron), Easy Green from dorwest( 1 scoop small dogs 2scoops big dogs) and 1 scoop for little dogs and 2 for big of Kelp! Its really helped his nose is practically black, when comparing it with his brothers it really makes a big difference! Hope this has helped!!