Slippery Elm Bark is meant to be good for coats. You can get it from Holland & Barrett in capsules, you just pull the capsule apart an sprinkle it on food. I used it for nausea for my cat Tiggy who had CRF - from the CRF website: Slippery Elm Bark is a herbal remedy used for most kinds of digestive or intestinal problems - it can be used for nausea, vomiting, diarrhoea or constipation. It soothes and coats the stomach lining and intestinal walls and reduces irritation. This can be extremely useful in combating the nausea and stomach acid which many CRF cats experience; as a side effect it can also improve coat dryness and dandruff.