I was also looking into injections for buttock enlargement with Refingel offered by a clinic in London, but I'm not sure of the long term effects of this substance and the risks attached. It is a permanent filler?Please can you help advise if this would be a good option to remedy flat butt after Liposuction, and the irregular shape issues? I was thinking of a temporary filler, but I dont want to be committed to reinjecting every year. Thanks.