Dear Honest769712, I would not use an expired product. Kybella typically takes 3 to 5 treatments to work. This is why I've stopped carrying Kybella in my office. I recommend neck liposuction more often then any injectable procedure for the neck now. It provides superior results gives me more control over the area than any injectable. It also costs about the same as what you paid for your first kybella session. The liposuction can be done under local while awake in the office and recovery is about the same as kybella. Daniel Barrett, MD Certified, American Board of Plastic Surgery Member, American Society of Plastic Surgery Member, American Society of Aesthetic Plastic Surgery