Threads, radiofrequency, ultrasound, and body contouring — separated from the marketing.
Cryolipolysis does roughly what its trials say. The complication that grows the treated area instead of shrinking it was quoted as vanishingly rare for a decade, and the pooled estimate has since moved by roughly an order of magnitude.
Every non-surgical tightening device places the same bet with different physics. The results are real, they are measured in millimetres, and the word 'lift' is doing a great deal of work in the consultation room.
Threads have real uses and a real complication list. What they do not have, after two decades of marketing, is much peer-reviewed evidence — and the satisfaction data falls measurably within six months.