The lines will not fade after you lose weight.
The lines may be congenital, but also may be caused by abnormal facial bone structure, skin laxity, aging and other factors. When you lose weight, your face will have less fat, your facial features will be more prominent, and your skin will be more sagging, so not only will the lines not fade, but they will also deepen.
If you feel that your facial appearance is affected by heavier lines after losing weight, you can improve the appearance of your face through filler treatments and surgical treatments, such as localized filler with hyaluronic acid, autologous fat, collagen, etc., or through plastic surgery. Please consult a dermatologist or plastic surgeon for details.
If you have lines on your face, you can go to a regular hospital and be guided by a doctor for a specific treatment plan.