What kind of professional should do lip fillers?

You'll want to see a board certified doctor with skill, expertise, and the best techniques with lip augmentation. I recommend getting a formal evaluation with a cosmetic dermatologist. Look at doctors who do live filmings, teachings, and have good before and after photos on social media sites!  Best, Dr. Emer

A board certified plastic surgeon with an interest in lips can perform anything from filler to lip lifts to permanent lip augmentation with autologous tissue.  That way you will learn all options, not just the option an individual provider offers.
I have patients who have had fillers for years, never got a very good result, only to find out that their lip nose distance was too long, and their upper tooth show was restricted by this.  The filler they were getting obscured their upper teeth even more!After a sub nasal lip lift and permanent lip augmentation with LiveFill, they no longer needed filler and never looked back.  They told me they wished their provider had told them of these options 10 years ago.