Dark circles around the eyes at your age is unusual and could indicate an insulin resistance.
Skin is the mirror of internal health and to get a perfect skin you need to treat both ways - internally and externally.
See a Dermatologist who will recommend a product for reducing pufiness and darkness and the correct method to use it, like it should be dabbed and not rubbed.
He may request a few blood tests to understand the blood chemistry and treat them specifically.
Avoid rubbing the eyes as it will increase pigmentation.
Now-a-days many chemical peels also offers realistic promise- like glycolic acid and lactic acid peels.
Dermapen in combination with mesotherapy also helps.
A healthy diet and lifestyle is mandatory to achieve results.