I am 72 female with double chin and slight jowel. Am I a candidate for the treatment?

Without photos it is not possible to make a recommendation, but your age is not a concern as long as you are in good health.  With aging there can be a loss of skin tone, elasticity and volume where gravity takes over. Be wary of minimally invasive treatments. Please consult with an experienced facial plastic surgeon to discuss your options.

At the age of 72 it's very likely that you'd best be served with a surgical lift, however, there are individuals who just don't want, or won't do, a surgical procedure. You need to make that decision first. Nonsurgical options usually won't approach the benefit of surgery, but may still offer improvements that would make you happy. Treatments such as liposuction, Kybella, ThermiTight, Infini, microneedling, even Botox, may meet your goals. If you decide you want to learn about nonsurgical options, then be sure to see someone who can discuss all the possible options with you. 

A full set of facial photographs are required to make a determination about what type of surgical procedure may be required. At 72 years of age with a double chin and jowls, a facelift is usually required. In our practice, a lower face and neck lift involves tightening loose facial and neck skin, tightening loose facial and neck muscles, removal of the fatty deposits in the neck and lifting the jowls. For more information and many before-and-after examples, please see the link and the video below

Most 72 year olds have extra skin and are best treated with a surgical neck lift.  But, you should look into some of the newer minimally invasive and non-invasive treatments like CoolSculpting and Kybella.I would see a Board Certified Plastic Surgeon in your area who performs surgical and non-surgical correction.  Let the surgeon tell you what you are a candidate for after a consultation and exam.

 Hi, I have performed many facial shaping procedures using dermal fillers, facial implants (cheek, chin), liposuction and/or facelifts for over 30 years.  Non smiling photos of your face from the front and side would help in your evaluation.  While liposuction can reduce excess fat in he face and below the neck, it by itself can't reduce the appearance of "jowls" nor reduce excess skin.  In fact liposuction performed alone in someone over 40 years of age can lead to increased loose (excess) skin and for that reason should be combined with some type of facelift and or neck lift. I have performed facelifts for over 30 years and have performed many minimally, invasive type facelifts.  Following my beauty principles, women look the most feminine, youthful and attractive with heart shaped faces.  Heart shaped faces have cheeks that are full and round in the front.  Cheek augmentation with a dermal filler or using cheek implants for a permanent enhancement will create full, round cheeks that will feminize the entire face.
 If you have "jowls” these are sagging facial tissues and are the main indication for some form of a SMAS facelift.  The underlying SMAS layer, of the face, must be dissected, lifted, trimmed and re-sutured (not merely folded or suspended with threads or sutures that will not last).  The excess skin is then removed and the facelift incisions closed.
My most popular facelift is the minimally invasive, short incision facelift that has all the benefits of more invasive facelifts (traditional, mid-face, deep plane, cheek lift and subperiosteal facelifts) but with these added benefits:
very small incisions and no incisions extend or are placed within the hair.
minimal tissue dissection = less bruising and swelling = rapid recovery ( several days instead of weeks or months with the more invasive type facelifts mentioned)
can be performed in 90 minutes or less, with or without general anesthesia
no incisions within the hair = no hair loss
excess fat can be removed from the face and neck
excess skin removed from the face and neck
cheeks, chin and jaw line can be augmented with dermal fillers (I prefer Restylane Lyft) or facial implants
most patients fly back home to parts all over the world in as little as 3 days post-op
I combine facial shaping with every facelift procedure.  When jowls are present, these should be done in concert and not alone or separately in order to create a naturally, more attractive face.
Hope this helps.