I've always used Rimmel's hide the blemish and put it under my eyes, in the little hollows under my mouth and around the edge of my nose and then just stick a tinted moisturiser on top. However, as 40 approaches it just doesn't seem to be doing the trick any more. The dark circles under my eyes aren't too bad (youngest DD is starting to sleep a bit better these days!) but the hollows under my mouth are looking more pronounced. What concealers do you use that work or are there any new wonder products I don't know about that I should try?