Sagging midface and jowls, what's the best non surgical and least invasive procedure for best results?

The cause of your mid-face and jowl sagging is due to the loss of facial volume that used to hold your skin in its previous "taut" fashion. As we age we lose skeletal, fat, and muscle volume in our face

The reason for my header being "The best long-term result would actually be invasive: Facial Fat Transfer combined with RF lasers" is because facial fat transfer WILL be more cost-effective in the long term and it's more natural because it's your own fat; compared with fillers.

If you decide to not go down the facial fat transfer route, fillers will be your next best thing. Regardless of what route you choose; you will need to "fill" the mid-face hollowness first AND THEN tackle skin tightening.

If you don't have a skin-care routine it's essential that you begin one. Having a tried and true skin care routine will increase the quality (tightness, look and feel, texture, tone, moisture, and smoothness) of your skin and the higher quality of your skin the better the results of nearly EVERY aesthetic treatment you get and the better you'll heal for anything invasive.

If you're absolutely set on the " best least invasive procedures" for the results you desire I'd recommend sticking to injectables and RFAL lasers.

Thank you for your
question and your photographs. Given the concern you have expressed, and your
images, I would recommend you consider a combination treatment of Ellanse
dermal filler and thread lift treatment with Silhouette Soft.
Ellanse is a long
lasting collagen stimulating filler that gives instant results that improve
with time. I would recommend treatment to your midface, to increase volume in
this area, prior to a thread lift.
Silhouette Soft is
able to lift areas of sagging skin, non-surgically to give an instant lift to
your jowls and to the lines between your nose and mouth. The threads are
inserted either side of your face and jaw line, just under your skin under
local anaesthetic, when tightened they lift the skin. What’s even better is
that results actually improve in the months’ post treatment as the threads
stimulate your body to create collagen (something we all lose as we age) to
give you a second biological lift.  Most
importantly, for men in particular, you won’t look ‘done’ after the treatment,
the results are extremely natural looking.