I'm 67 hrs old and considering ultherapy. Is it too late to be effective?

No, it's not too late and it won't negatively impact your fat transfer.  Ultherapy is a great device, but works best in combination with other treatments like lasers, RF treatments, microneedling/PRP or sculptra to get increased collagen, tightening and improve skin tone. I recommend getting a formal consultation with a cosmetic dermatologist. Best, Dr. Emer

There's no set age for Ultherapy, rather it is the quality of your skin and degree of laxity which determines whether the treatment would be appropriate or not. You would need an in-person consultation and evaluation in order to make that decision. You are right, in general the treatment works better for those individuals with mild skin laxity. Older individuals with moderate to severe skin laxity would either need multiple sessions or a different treatment. Ultherapy will not affect your fat if done properly. Please see an experienced provider. Hope this helps answer your question.

The most recent studies show that Ultherapy® can ENHANCE the results of fillers/fat/Botox® Cosmetic and even other lasers.