Hi! dark circles around the eyes can be due to a variety of causes- 1) Allergies are a common cause of skin discoloration under the eyes. If an allergy is the root of your problem, treat the allergy, or remove the allergen (namely, the thing to which you re allergic). Seasonal allergy problems such as the hay fever can frequently be effectively treated with over-the-counter and prescription medications. For other allergies, the best course of action is usually avoidance. If your dark circles or puffiness are constant, you may have an undetected food allergy or an allergy to a chemical in your home or workplace. Talk to a dermatologist for help determining what you may be allergic to. People with allergies also tend again to be deficient in B6, folic acid, and B12 on occasion. Taking a multivitamin, if you don t already, may help with your allergies as well as black circles. 2) Gluten intolerance - Another common allergy that causes dark circles is gluten intolerance, which is an allergy to wheat flour in particular. More severely, you could have celiac disease. To test for celiac disease, have blood tests performed by your doctor. It s important to remember, however, that you can be gluten intolerant, and not have celiac disease. 3)Build-up of inadequate sleep If you ve been under a lot of stress, or you have insomnia or sleep apnea, your skin will reflect your lack of sleep by looking poor or discolored. 4) Nasal congestion a blocked nose can result in dark circles under your eyes because the veins that drain from your eyes to your nose are darkened and dilated. 5)Pigmentation irregularities - These can cause darker circles under the eyes. 6) Sun exposure This can increase melanin production. 7)Thinning from age . Aging thins the skin, making veins and vessels more obvious as your fat and collagen depletes over time. 8) Lifestyle factors Poor nutrition, excess alcohol consumption, too many caffeinated drinks, cigarette smoking, and lack of exercise can all contribute to under-eye discoloration. Consider seeing a nutritionist or dietician if you re concerned about dietary issues. 9)Heredity Establish whether or not this condition runs in your family, as under-eye dark circles are believed to frequently be hereditary. This doesnt mean that you cant do anything about the conditions, but you should be prepared for minimal success when trying to get rid of them. Most commonly treatments include-Apply an eye cream containing vitamin K and retinol. Dark circles may be caused by a deficiency of vitamin K. Regardless of the cause, however, skin creams containing these two ingredients reduce puffiness and discoloration significantly in many people. Long-term daily use seems to have the greatest effect.Use an under-eye cream.Avoid rubbing your eyes. Relaxing might help remove sources of stress and anxiety that are preventing you from sleeping, eating, and resting properly. In turn, relaxing enough will help your eye skin to improve as you feel less stressed and more at ease. Skin tends to reflect a whole host of emotional and physical ailments, so don t dismiss the need to relax lightly.