i had my first Kybella injections 6 days ago. How long until my neck stops jiggling?

Kybella results can take up to at least 1-2 weeks. It may take a combination to effectively deal with sagging loose skin on the neck.  Non invasive options like vaser/thermiRF combination, thermage/ultherapy, and fillers can help.  Please see an expert for evaluation.  Best, Dr. Emer.

The "jiggling" is due to the swelling of the area after kybella injection.  The worst is generally over by 3-4 days/ It may take 3-4 weeks to get back to your baseline contour.  The jiggling is generally gone by 2-3 weeks.  I had a treatment myself with 3 vials and the jiggling was gone by 2 weeks.    I will say that no one else noticed after 3-4 days.