I'm 65 and have a thin neck, however, my platysmal band is curling forward on the edges. (Photos)

I like nueromodulators (Botox or Xeomin) that relax the muscle band as an easy 5 minute office procedure. A neck lift from posterior ear incision can lift the bands laterally and up. The bands can be cut . An anterior below the chin incision is an alternative to access them and fix them. Good luck...

Hello and thank you for your question. Based on your photograph, you may
benefit from a neck lift.  If good technique is used,
this can be done with minimal scarring and can result in a natural look, not
over-done look, with rejuvenation of your neck.  Make sure you specifically look
at before and after pictures of real patients who have had this surgery
performed by your surgeon and evaluate their results. The most important aspect
is to find a surgeon you are comfortable with. I recommend that you seek
consultation with a qualified board-certified plastic surgeon who can evaluate
you in person.
Best wishes and good luck.
Richard G. Reish, M.D.  FACS
Harvard-trained plastic surgeon

Platysmal bands and thin skin. You can try Botox first. If that doesn’t give you the results you want then a facelift with necklift is needed. This is best done by a very experienced facelift surgeon.