Is 25 Too Young for a Non-surgical Face Lift?

First of all, congrats on losing weight and staying healthy! Don't discount the hard work that takes.

Your skin does get stretched out when you are carrying extra weight. After losing that weight, some patient's skin does not have the ability to "snap" back to that tighter position. In the most severe cases, a traditional "facelift" can be done. But that is not the case with you. The deeper folds you see around your nose and mouth are a result of the "volume" you lost with the weight loss. Using fillers, fat grafting and/or PRP (Protein-Rich Plasma) can greatly restore that volume and bring back a smoother contour to the face.

There may be some benefit in using non-invasive skin/muscle tightening treatments, like Ultherapy, but none of those on their own will provide enough correction. It would be one way to practice prevention in the skin loosening more quickly over time.

Please do not go looking for ThreadLifts anymore, they've been wrought with poor results that do not last, and numerous complications.

After massive weight loss, you may develop significant laxity of tissues in many body areas including the face.  Age alone doesn't preclude you from a non-surgical face lift.  Restoring some volume in strategic areas using fillers may have a profound effect of reducing the laxity in your face.  You can also consider treatments such as Ultherapy which may help you reduce the laxity in the facial tissues.  Good luck.