Foxtail I would find a really good beauty clinic that employs properly trained practioners and ask for a consultation. tbh Personal recommendation is what I prefer from someone I know and trust. I'm 77 and generally my skin tone is very good, I don't have deep marionette lines and I wouldn't consider surgical procedures or anything too invasive or permanent. I have skin boosters every six months, they are injections under the skin of hyaluronic acid. It's a bit uncomfortable but really quite effective. Basically they attract moisture reducing fine lines and generally plumping the skin. The effect is subtle but significant and I am constantly being told how good my skin is (for my age!) I have no problem in anyone having a pop at me for being vain, I am vain, I like to look my best and I'm fortunate to have the cash to spend on myself and I do! I don't think they would make a big difference to deep marionette lines, I think you'd need botox to relax the muscles at the corner of the mouth and some filler in the actual lines, personally not for me but it might be for you. I go to someone I trust completely who has had extensive training, so if you do decide to have a consultation check their qualifications and if they have reviews go through them carefully. The other thing I'd recommend is keeping foundation (if you use it) to an absolute minimum in the areas where you have the most lines and use the lightest weight/coverage that you can elsewhere as when it settles into lines it makes them more obvious. I've found the skin boosters have really improved my skin tone so nowadays I can get away with very little coverage. Good luck with whatever you decide to do.