How effective are lifting lasers (Ulthera, Thermage, etc.)?

Lately, my face seems to have sagged a lot, so I get worried every time I look in the mirror.
I am using an essence with wrinkle-reducing and firming functions.
Other than that, there isn't really anything else I manage.
I'm debating whether I should get a lifting laser.
I've heard that Ulthera or Thermage are good, so I'm curious to know how effective the results were for those who have received lifting laser treatments.