I think the most important thing to do is find a plastic surgeon (or dermatologist) whom you trust, both in terms of skill and ability, but also her/his artistic vision for your face. This is so important, I cannot say it enough! The success of each of the treatments you mention above are dependent on the judgement, vision, and artistry of the injector. I love questions like this, because you are doing your research before jumping into treatments that may not be right for you, and you are starting off with normal aging changes (as opposed to poorly done treatments that need to be "undone" or reversed before starting fresh). Poorly done treatments make people look older, and can also make people look strange or obviously "done". It's a shame so many live with poor or mediocre filler results thinking that is the best they can get. When I see someone in consultation, and the main complaints are the undereyes and nasolabial folds, I look at the face as a whole, not just the areas mentioned, because the facial balance and facial harmony are so important in creating beautiful results. For instance, one of the worst things to do when someone doesn't like their nasolabial folds, is simply fill them until they are smooth. This tends to throw off the balance of the face and instead of creating a youthful or rejuvenated look, can create a heavy look to the lower face (kind of "monkey-like"; smooth, but monkey-like). Instead, filler to the cheek (which also has good and bad techniques, and can range from beautiful/natural when done well, to chipmunk/bloated looking when done poorly) can lessen the nasolabial folds and help the appearance of the lower lids, and often a thinner or finer filler is used to smooth the undereye hollow and the transition from lower lid to cheek. I am not a big fan of threads, and that is a whole different topic. Radiofrequency treatments are great, and can give beautiful results. With the photos given, ideally you would do both radiofrequency and fillers, but if you had to choose one, the fillers will be more immediate and provide a more visible result for specific problem areas. Again, go on some consultations in person, get a full assessment of your face and recommended treatment plan, and decide which doctor you trust. Instead of looking for someone to address 1 or 2 current issues, it is better to look for someone you trust as a resource, not just for one appointment or one problem, but to do little things over the years to keep you looking amazing. The people who look like they don't age are typically doing small routine maintenance treatments here and there to stay looking that way. ;) Also, caution if you choose a provider who doesn't offer noninvasive treatments, because sometimes patients mistakenly think they are not candidates for certain things, when it may simply be that the doctor doesn't own the machines required to offer it. (If your only tool is a hammer...)