13 07 tear trough treatmentDescription: This procedure reduces the appearance of darkness and hollowness under your eyes, making you look younger and more rested.

How it's done: When the skin under the eyes is thin and hollow-looking, the area appears darker than the rest of your face. Restylane is injected under the eye to fill out the area and reduce the appearance of darkness.

Complications: If the product is injected too close to the surface, bumps can result since the skin is so thin, or the vessels under the eye can be damaged, causing bruising and swelling.

Recovery: One to seven days from swelling, and possibly bruising.

Cost: $400 to $800.