Place a cold compress for around 10 minutes in the morning or evening — or better yet, both in the morning and the evening. It will help to calm and regenerate the skin around your eyes, as well as prevent premature aging. Just wrap several ice cubes in a washcloth or dampen it in cold water.

Next, Let’s Understand What Causes Dark Circles.
There are a few causes for dark circles under your eyes. As soon as you learn your reason, it’ll be easier for you to get “happy eyes”, not the puffy ones.
1. Age
Dark circles under your eyes are commonly explained by natural aging. Your skin grows thinner as you grow older. You also lose fat and collagen, which are required to keep your skin supple. The dark blood vessels beneath your skin become more apparent, darkening the area beneath your eyes.
2. Chronic fatigue
Dark circles can appear under your eyes as a result of oversleeping, chronic fatigue, or just staying up a few hours past your typical bedtime. Sleep deprivation may make your skin look pale and dull, revealing dark tissues and blood vessels beneath the skin. Sleep deprivation can also cause fluid to accumulate behind your eyes, making them look puffy.
3. Eye strain
Staring at a TV or computer screen for long periods of time can cause serious eye strain. The blood vessels surrounding your eyes may widen due to stress. As a result, the skin around your eyes may get darker.
4. Sun overexposure
Excessive sun exposure can cause your body to produce the pigment, melanin, which can darken under the eye area.
5. Dehydration
When your body is dehydrated, the skin under your eyes becomes dull and your eyes appear sunken. It happens because of their near closeness to the underlying bone.
6. Allergies
As a response to damaging bacteria, your body releases histamines when you experience an allergic reaction. Blood arteries dilate and become more apparent beneath the skin because of histamines.
7. Genetics and medical conditions
Dark circles can be an inherited trait, which you can notice since childhood. Thyroid disease and kidney diseases are two more causes of puffy eyes.
There you have it! Top 10 DIY easy remedies to remove dark circles and their causes.
Dark circles are usually nothing to be concerned about. If the discoloration or swelling develops over time though, see your doctor or dermatologist to be sure you’ve identified the problem correctly and are getting the appropriate therapy.