Check this out; http://www.tesco.com/groceries/product/details/?id=254503500 I usually work on the principle that if it doesnt come off with a hard wipe from the soapy microfibre, then it stays unless they pay for UPVC restoration. But I am planning to go the extra mile and restore some of the downstairs sills on my round, I bought a bottle today. I tried it out on my sills and they have come up really nice, with not a lot of work, but he main thing that attracts me....30 ****in' p! It seems a little milder then Cif, but haven't used it enough to see which is best yet. Can't be a bad thing though, since it still gets the job done, but probably not as bad for your clothes or hands. It doesn't seem to stick to everything the way Cif does, so it wipes off nice and easy.