Age 51, I want improvement to loose skin under my chin. Too early for facelift? Other options? (photo)

The redundancy that you see is secondary to platysmal muscle underneath your skin. One option for you to consider would be an incision just underneath your chin, suturing/partial resection of your platysma muscle in the midline to tighten it and remove the redundancy. Without this redundant platysma muscle, your neck contour should be improved with a relatively minor procedure. This also specifically targets this area without having other incisions and threads placed across your neck. RF would not likely improve your concern.

Based on this photo it seems that you are good candidate for distal face/neck lift. In the past few years face and neck lift is very popular module of facial rejuvenation and youth maintenance in the population of mid-forties to mid-fifties. It is not only about "significant improvement" it is about keeping your face appearance unchanged for next 10-12 years. Skin rejuvenation with different modalities like RF, J Plasma, micro needling, chemical peels is part of maintenance protocol. For someone who performs this surgery frequently and for a young, healthy patient like you that should not be "big surgery". Hope this helps.

Thank you for your question and photo. This type and degree of skin laxity responds well to Renuvion skin tightening procedure under local anesthesia. I personally use the VASER technique to release the skin from the underlying tissues and then the Renuvion (Helium plasma and RF) to tighten the skin. See a board certified plastic surgeon for an in person consultation/evaluation. Good luck.