Dark circles are a symptom which might be because of varied conditions which need examination before one can start you on a treatment.
Eg- if due to hollowness- filler or fat grafting helps
If eyebags, lower lid blepharoplasty
If pigmentation, vit k and peels help... and so on...
Next Steps
consult a plastic surgeon or dermatologist nearby
Health Tips
mostly it's pigmentation and vit-k helps to some extent.