WebMD says the best way to hide dark circles is with a cosmetic concealing product...

We found that if you use warm tea bags over the eyes for 15 minutes you arise with lighter and tighter eyes. If you're in a hurry keep a spoon in the freezer at all times and place it over each eye until they feel awakened.

Vitamin K is what helps to clear dark circle. Jello gelatin is high in vitamin K...

Also,
-Get plenty of sleep.
-Eat plenty of fruits and vegetables.
-Drink plenty of water.
-Exercise daily.
-Maintain good hygiene.
-Stay out the sun and use sun block.

Lastly...one we have not tried (because tea bags work great and I have allergies) is Preparation H...

Reduce shaving bumps with Barc products. Many ethnic men have reported that this line of products have really helped in reducing bumps, itching and redness...leaving skin feeling smoothe and sexy...ooo, purrr!!!