Oh dear, yes those are the bane of everyone's existence!
The first thing I think of, of course, is are you getting enough sleep and good nutrition?
Are they hereditary - does anyone else have them in your family?
What have you tried so far?
Most places have a 30 day return policy with receipt, so you can try things and if you don't see any results at all happening, you could take them back.
Those free trials usually end up being scams.
Here's what works for me: retin-a (even under the eye area), vit c serum, sunscreen, facial exercise and massage to firm up and thicken the undereye skin so that the discoloration doesn't show thru - also this fills in any hollows that show up as dark areas. I use FlexEffect and Ageless If You Dare.
Hope this might help a little.
Skin | care | talk