i noticed on the link it says washing up liquid for the grease gland area... any type of washing up liquid? i.e value range or fairy? scented ones or origional?
For "Big Boar" greasy fur the only way I have found to "sort it" is to bathe/soak with either Johnson insecticidal or Nizoral (antifungal) shampoo....after picking off the gunk with a fingernail....preceded by a scissor haircut if necessary I have not found any other shampoos (including gorgoeus guineas, johnsons etc ) to have successful grease dissolving capacities
he has got quite a dodgy hair cut round his back end (he is a long haired piggy) though..lol i have tried to pick alot out of him, but its just greasy when i groom him.