Why do my eyelids drop again after plexr?

Thank you for your question. Plexr is a temporary solution and is not engineered to provide significant changes to your appearance. I suggest that you consult with a board certified facial plastic surgeon to discuss the benefits of eyelid surgery, known as blepharoplasty. Best wishes,

It does not have the power to "lift" an eyelid no matter what was promised to you.  It is not really a nonsurgical eyelid lift.  Generally eyelid issues are best addressed with eyelid surgery.  Consider posting a photograph here so we have a better idea of your issues.

Plexr is a non-invasive technique.In general the lesser invasive, the less is lasts.More invasive techniques tend to last longer.