Nasolabial folds - I want a more permanent solution, maybe stem cell lift? (Photo)

At this point, your best option may be to add filler to the cheeks that could last up to two years.  I would also encourage to schedule a consultation with a board certified facial plastic or plastic surgeon to determine which options will meet your desired results. 

The photos you posted do not show deep nasolabial folds, but there does appear to be a relative lack of volume in the cheeks. Adding volume in the right area will help that and will also lift the nasolabial fold a bit, so I would avoid using much filler directly in the folds. Voluma is a good option for the cheeks and it lasts about 2 years. Fat grafting is probably your best option, but the extra expense of enhancing it with stem cells does not make sense to me.