Laura, if you can find Shu Uemura's Mark Concealer, get it. it's one of the best i've tried b/c it really covers anything--redness, dark circles, acne scars, etc.
The best concealor I've tried so far is Max Factor Panstik. I know it's marketed as a full coverage foundation, but because it's so pigmented, it makes a fabulous concealor for my horrendous undereye circles. I wouldn't call it my HG, but it's definitely up there...
KeaLoha, Shu Uemera isn't sold in Ireland unfortunately
Might give MF Panstik a go though Feisty coz i don't think it's too expensive & it might be just what i need during the Xmas season of late night parties! Thanks girls