Plasma fibroblasting for loose skin under chin due to weight loss? (Photos)

Hello, I have a band of loose skin under my chin that is bothering me. It is due to weight loss. I had Hifu and radiofrequency done for this area and neck but with no improvement really. In the future I plan to do Endolift, but since it’s quite expensive, in the meantime, I want to improve the laxity. Would plasma pen treatment be more effective, based on your professional opinion? Thank you.