Which procedure would minimize wrinkles, fine lines, creases and volume loss in the under eyes? 27 y/o (photos)

You can consider non surgical and surgical options. Non surgical options include a combination of Botox and fillers as well as treatments such as Morpheus8 which can improve overall skin tone and texture. Surgically you can consider a lower blepharoplasty for longer lasting results. I've included a video I hope you find helpful.

Fractional laser is an amazing and highly effective treatment in our office. We use the laser treatment to help with acne scars, large pores, fine wrinkles, tissue collagen loss, scars, sebaceous hyperplasia, active acne, and for brightening dark pigmentation. Although there are very strong fractional lasers such as CO2 laser, we use lighter treatments for corrective skincare and maintenance of results. Our Thulium fractional laser, clear and brilliant laser, and Ultra Thulium laser are excellent options in our clinic. We also perform CO2 fractional and erbium depending on skin tone and tolerance for downtime. Patients do have to use a Melarase cream before and after treatment to help further reduce pigmentation after laser. Melarase AM, Melarase PM, and Melapads can seriously improve surface sun damage and UV related pigmentation. Dark spots can improve with these treatments. I recommend fractional laser for incisional scars as well, especially after plastic surgery.
Best,
Dr. Karamanoukian
Realself100 Surgeon

From the photos provided, it would appear that the use of the appropriate HA filler(s) injected with the proper technique would address the under-eye tear troughs and hollows visible in the photos provided. Since the upper cheek region is a major support for the infraorbital region, the use of a robust HA volumizing filler in the upper outer cheek region would not only create a more ogee curve to the face, but would secondarily improve the under-eye tear troughs and hollows. If necessary, the additional use of a low viscosity, cohesive, malleable HA filler could be use to further refine and improve the infraorbital region. In experienced hands, the treatment can should take no more than ten or fifteen minutes to perform, yield immediate results, and engender little to no significant downtime. These are advanced injection techniques not to be left to the hands of novice injectors accustomed only to using simple Restylane or ordinary Juvederm for filling smile lines. You would be wise to consult with an experienced, board certified cosmetic dermatologist filler expert. Hope this helps and best of luck.