31-year-old Asian female. 5', 95lbs. Nasolabial folds issue or nasal aperture? (Photo)

I recommend fillers for the folds themselves but also lifting around the mouth and cheeks to build underlying anatomical support. In our practice we combine sculptra with other fillers "layered" on top and lasers, rf treatments and peels to get the most conservative natural look. Please see a facial sculpting expert. Best, Dr. Emer

Dear thn86,based on your photos, you might be a good candidate for a dermal fillers. It would be the best to visit a board-certified plastic surgeon and get a formal evaluation.Daniel Barrett, MD, MHA, MS 
Certified, American Board of Plastic Surgery 
Member, Am. Society of Plastic Surgery

Thanks for the great question! Fillers work great to replace areas of volume loss that either are genetic or which happen over time. There should not be any stiffness associated with long term filler use as most fillers are broken down and removed with the body over the course of 12-24 months. I think fillers would definitely improve your nasal labial folds. Find a doctor in your are to set up a consultation. Best of luck!~Dr. Sieber