Hi, This is renu.
I had a dark circles since my school days. Its all because of lack of proper sleep.
Once I started using this product I feel the changes in my under eye. Actually this product contains Neem, which helps to lightens the dark circle, and vitamin - E oil is added, which protects our eyes from Pollution and UV-Rays.
We should use this product with a proper guidance and now-a-days it is also directed by Physician.
Some may not feel much difference while using but once we use continuously we can feel the difference.
It is very ease of Use and sensitivity. The cost of the product is reasonable and also available in markets.