I am on a weight-loss diet. My weight is decreasing, but my skin shows signs of looseness and sagging. What skin-firming method is effective within one to two weeks to be ready for Tet? (Anh Mai, 32, TP HCM)

I have had noticeable nasolabial folds since childhood, and they have become deeper as I've gotten older. Should I treat them with SUPERB or HIFU wave technology for effectiveness and safety? (Anh Nguyet, 30 years old, TP HCM)