Hello Sir, It's been more than 8 years now my dark circles are becoming deep and darker with each day passing. I tried all the home remedies but there was no effect though I sleep for 8 hours daily, exercise daily, strict diet with no fast foods, drink 4 litres of water daily, no habits such as drinking or smoking,no exposure to sun either as I usually cover my face while traveling but still it's  have no dark circles till now. Kindly suggest me the remedy for this as I am totally annoyed. Also help how can I tone my skin colour as my skin was very tonned or light in my earlier days but not now.