The hollows under my eyes are so dark, thin and deep, how can I fix them? (Photo)

this can be Improved with cosmelan/enlighten peels and at home derma rolling. this will never be "cured" as this is genetic and part of your skin coloring but can be Improved with these skincare and at home peels.\
There are many things you can do to treat under eye hollows and dark circles. A surgical option to remove skin and/or fat will be the best long term.  However, non invasive less downtime options such as fillers, lasers, microneedling/PRP, cosmelan peels and stem cells can all help give some improvement. I suggest. You get a formal consultation to see what is best for you and your goals.

Hi there,Thank you for your question! Dermal
filler can be injected to plump the skin from underneath and reduce the
appearance of under-eye hollowness. This procedure is quick and fuss free and
works wonderfully to refresh this area and reduce tired, dark circles. It’s
important to take some time to do some research and find an experienced
practitioner who has performed this procedure many, many times. Once you
are happy I would suggest scheduling a consultation to discuss this
option in detail. I hoe this helps!Best Wishes,Dr. Rupert

Fillers are often used to add volume to the hollow under the eye.  The work by camouflaging the contour irregularities.  They work well when combined with other treatments such as microneedling, lasers, and chemical peels.  Visit with an expert injector near you to learn more.