For dark circles, I swear by Elemis Absolute Eye Serum. I definitely can see a difference (for the worse) if I run out of it. For an Eye Cream, I like my Gatineau Melatagenine. I have been road-testing a sample of the Bioeffect EFG serum, and it has most definitely softened the lines around my eyes. I don't rate Decleor Hydro-whatsitface, for the results (or rather non-results it gave me).
As an aside, I had laser eye surgery 4 years ago and though I do have continued slight eye dryness, it is, without question, the best thing I have ever, ever done. I was so short-sighted I couldn't even see the letter board in the opticians let alone the letters on them, I've gone from -5.7 to -0.5 and every single day I count my blessings that I can wake up in the morning,
open my eyes and just see.