41 y/o female, petite, 5’2, 110lbs - what is best option for me for sagging under chin? (Photos)

You should be seen in person so that your neck can be examined to determine the cause of your submental fullness. Subcutaneous fat (even a little) can be removed with liposuction, usually combined with radiofrequency skin tightening, like Facetite and Morpheus8. Deeper fat, if present, is removed with a neck lift procedure. Most definitive treatment would be a full facelift and necklift procedure, but that's probably jumping the gun a bit in you. I would also think of augmenting the chin and jawline, with either filler, chin implant, or fat grafting, depending on how much augmentation you need, to help tighten the skin as well.

Chin liposuction helps reduce the bulge under the chin and can be done for the whole neck. Once the fat is removed the skin can become loose and saggy in some cases. It can be avoided by combining it with Thermitight which is a radiofrequency heat delivered under the skin to tighten it. Both chin liposuction and Thermitight can be done at the same time. The recovery is fast and it can be done under local anesthesia.
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Regards
Dr. J

You definitely need alittle liposuction with morpheus and facetiteRF under local to get that fantastic jawline/neck looking natural with only 1 day downtime and for only $4750.