Has anyone used either of these non surgical techniques to deal with loose skin (or know someone who has)? Any insight / advice?

Had my first Secret RF (same as the ones you mentioned) session Friday afternoon so my fingers are crossed. My doctor focussed on skin laxity (sounds nicer than saggy skin) this time so nothing done to my forehead. In 4 weeks we’ll do wrinkles & scaring. At the third session we’ll decide which we’ll do & if I need a fourth session. Secret RF uses different size heads (not sure if the others do too) for the different procedures & the heads are disposed of after each session (& aren’t cheap). She kept changing the needle depth on different areas of my face.

Also my doctor used a stronger prescription local topical anaesthetic (20+% vs the lower over the counter 5% many non medical clinics use). Even inside my mouth & tongue were numb ?. It really was pain free. Occasional little poking feeling lasting a much like if you tap your cheek bone with your finger nail. Redness was much less than derma pen - that lasted for days. No pain, heat or discomfort after either.

Pxts are 30mins after treatment, the next morning & this morning. Of course it does take three months to see real effects which is your natural skin cycle though they claim some can see small change in a couple of days. Don’t know if I’m crazy, or wishful thinking, but I think my cheek is a little smoother& firmer today. Jowls are still there though. Wish I had taken a pxt before the session.

@Arabesque Keep us posted on your results!