Is 59 Too Old for Invisalign?

There really is no age limit for the use of Invisalign.  However the health of the teeth and gums are the most important considerations which could limit any tooth movement method.  Encourage the close the working of your Periodontist and Invisalign Dentist to assure the healthiest result.  Invisalign has advantages over traditional braces and can handle certain difficult corrections better because Aligners can be removed anytime to clean the teeth.  Sensible use of Aligners can be great in the right circumstances.  Have that evaluation by a qualified Invisalign doctor.

59 is not too old to get Invisalign treatment.  In our office, we have treated dozens of 60+ year-old patients with excellent results.  As long as your bone structure and periodontal support are healthy, you have a good chance of being a candidate for Invisalign.
There are two reasons someone your age considers Invisalign treatment:1) improving dental aesthetics2) his/her periodontist has recommened that the bite or dental alignment be corrected for a more stable occlusion and/or periodontal environment
At 59, you have to make sure that your periodontal environment is healthy and stable.  If your dentist or periodontist recommends Invisalign, then I am under the assumption that your dental environment is healthy and you are ready to start treament.  If you want to go forth with Invisalign, ask your dentist for an orthodontic recommendation.