retinol can improve color and fine wrinkles around the eyes but not hollowing, puffiness, or sunken look. 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. 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. Best, Dr. Emer.