While crinkles and horizontal wrinkling under the eyes is more common with aging, there are many people who have them from youth. Regardless of age, these problems generally respond well to a combination of simple treatment approaches.
In my experience, the most effective method for nonsurgically rejuvenating this crinkly region under the eyes in a younger person would begin with the use of neuromodulators, such as Botox, Dysport, or Xeomin in order to address any muscle bulging (hypertrophy) directly under the eyes that may be contributing to the problem.
If tear troughs are a beginning problem or dark circles, the use of the filler, Belotero Balance, combined with a very small amount of Radiesse (whitish colored injectable material) can eliminate the trough and lighten the skin. Using longer needles or cannulas than in times past, we can now enter this region from a location further down on the cheek, a method less likely to result in the bruising that used to so often temporarily result from direct injections into the troughs and hollows.
When appropriate, to further help smooth out the wrinkling under the eyes, small amounts of Juvederm UltraPlus XC can be injected in the region of the upper inner cheek and then smoothed into place directly under the eyes along the border of the orbital rim.
It is imperative that you seek out a board certified aesthetic physician experienced in injecting the entire gamut of available materials and who is capable of tailoring a specific regimen for your particular needs.