It's no secret that Kylie Jenner has had work done her face — she did, after all, admit to getting lip fillers — but plastic surgeons are worried that the 18-year-old may ruin her features for good if the cosmetic work continues!

"Kylie Jenner unfortunately appears to have had way too many fillers injected into her cheeks and lips and they appear completely unnatural, as they are out of proportion to the rest of her face," celebrity plastic surgeon, Dr. Tony Youn, tells Radar Online.

"I suspect that she's had several syringes of filler injected into her lips, maybe even as many as 10 syringes," he adds. "Hopefully the appearance that we are seeing is temporary swelling…If not, then I STRONGLY recommend that she stop treatments before it is too late."

Dr. Youn, who has not worked with the teen, continues, "This could turn into a major problem for her and she will end up ruining her face!"

kylie jenner

Kylie in February 2014 vs. September 2015.

Fellow surgeon, Dr. Susan Evans, believes that the reality star has "been injected with the longer lasting hyaluronic acid that increases volume…Her lips are so big now that it has created a fold from her nose to the corners of her lips."

RELATED: Kylie Jenner and Tyga Have Made Multiple Sex Tapes

Dr. Evans, who has also not worked with Kylie, says the procedures have left her looking "over done and significantly older. It's a good thing that American-approved fillers don't last forever."

Do you think Kylie has gone too far with the plastic surgery?