I personally have not used herbals for Sprocket but use them for myself, for Sprocket the only extra I give him the vet recommended a vitamin and I use a vit B for the fleas, I know, fleas, the bane of our existence
. We all would do just about anything to get rid of them. I must say though the vit B complex sure seems to make Sprockets hair nice, grows like crazy too. I would not give to Sprocket a supplement or such that I had not tried out myself, I know, crazy dog lady, but my gf who is into vits and supplements put me onto vit B, OMG, for the hair and nails and skin, so nice. So I figured, the dog, why not, I asked the vet, she said OK, got some from her. only thing I would say is check with your vet, some of these vits and supplements are VERY strong and could hurt more than help. Good luck!!