I've only ever used Prochem products as they are excellent...
Prochem's Citrus Gel should do...
On that eBay there are a set of Prochem's stain removers in a set, 4 small bottles that will sort out most situations - although I have never tried that set, I use the litre (and 5l) bottles of products, they are a selection of the same products
You could also try a small amount of Fairy liquid - Do Not Rub - use a dabbing method - then rinse