What's the best option for jowl reduction for a 41 year old?

If one has true jowling it should be corrected in a
surgical manner with a
Face/Necklift for facial rejuvenation with a “Lift
and Fill”type
technique. A “Lift and Fill” facelift “Fills” the central fat compartments and corrects the jowls by surgically “Lifting”the SMAS. This should be done in the hands of a Board
Certified Plastic Surgeon who understands the science of aging and can correct
this providing a natural looking result.

Since you want a permanent solution, I would suggest that you book a facelift consultation with a board certified plastic surgeon in your area (link below). You might be a candidate for a mini-lift, but this is something that would need to be determined with an in person exam. Best, Dr. Nazarian

There are many options open from smaller procedures at the corner of your mouth to a #MiniFacelift which may be the better option. See the below link for more information.