
There are several reasons that dark circles around the eyes may appear. These include lack or regular sleep, seasonal allergies and Vitamin B12 deficiency. There are a few remedies that may help. Although there are some treatments that may be helpful, they have not been proven long-term effective. Below are some common causes of dark under-eye circles. If you are suffering from dark circles under your eyes, you should know what they are and how to treat them.
Sleep deprivation
Getting enough sleep is crucial to combat the appearance of dark circles around the eyes. Insufficient sleep can make blood vessels under the skin more visible, which can lead to darker circles and paler skin. Dark circles will appear less if you get seven to eight hours of sleep each nights. The age-related thinning of tissue around the eyes may be a contributing factor, but laser therapy and fillers are available to treat these problems.
Anemia
Anemia is often seen as dark circles under the eyes. This is due to a deficiency of the mineral iron. The cause of this deficiency are poor circulation and low oxygen levels. The skin around the eyes and the veins and capillaries carrying red blood cells is close to the top. These capillaries and veins become dilated and red blood cells, along with their hemoglobin, are deposited under the eyes. This leads to dark circles under your eyes.

Allergies to seasonal foods
Allergy sufferers often experience puffiness and dark circles below the eyes. These circles can be caused by nasal congestion, which causes increased blood circulation to the nose and eye. The skin around the eyes is also susceptible to allergies and is very delicate.
Vitamin B12 deficiency
Dark circles under the eyes can be a sign of Vitamin B12 deficiency. Vitamin B12 is essential for nerve and blood health. It also plays an important role in the production of DNA, the genetic material found in all cells. It can cause problems in the nervous system and heart as well as the brain.
Allergy triggers
Many allergies can cause puffy eyes and dark circles under the eyes. While there are over 140 food allergies, most cases are caused by allergies milk, shellfish or peanuts. While it is impossible to avoid all allergy-related symptoms, there are things you can do to minimize their effects.
Retinoid creams
Retinoid creams can reduce puffiness around your eyes by reducing dark undereye circles. There are some people who are skeptical about these products, particularly around the delicate eye region. There are many factors to consider before using these items, so make sure you do your research.

Cucumber
Cucumber is high in antioxidants. This compound has been proven to reduce inflammation and prevent fluid buildup under the eyes. It also helps lighten dark circles and soothes the skin. This vegetable also has 95% of water, which is great for sensitive skin near the eyes.
Caffeine
Caffeine is a popular ingredient in brightening gels to help reduce dark circles. Caffeine helps reduce dark under eye circles, puffiness, and fine lines. It also revitalizes blood flow around the eyes.