Democratic presidential nominee Hillary Clinton has been running non-stop since she first announced her candidacy for President of the United States in late 2015. And according to several top plastic surgeons, the 68-year-old wife of former President, Bill Clinton, has used plastic surgery to keep her face fresh! Click through eight shocking photos as RadarOnline.com exclusively reveals what doctors believe Clinton may have had done to make her look years younger!

Photographed recently here on the campaign trail, Clinton looks very refreshed. According to Beverly Hills plastic surgeon Dr. Susan Evans, "It appears that Hillary Clinton started the race with a conservative upper eyelid surgery. Otherwise, she did a non-surgical lift and a Nefertiti neck lift."

"Hillary also most likely used Botox in select locations with fillers that have given her a tighter face. She softened the folds and possibly used Vitamin A to plump her skin," Dr. Susan, who has not treated Clinton, added.

Dr. Michael Salzhauer aka "Dr. Miami" agreed with Dr. Evans regarding Clinton's eyelid surgery and also said that she's most likely "combined it with botox and chemical peels, or laser resurfacing."

Cosmetic surgeon to the stars, Dr. Sheila Nazarian agrees with both of the other doctors that Clinton appears to have gone under the knife. She told Radar, "Hillary also appears to have had Botox in her forehead. She looks surprised with her eyes wide open now and no movement in her forehead," Dr. Nazarian, who did not do work on Clinton, said.

Fillers, fillers and more fillers ! According to Zara Harutyunyan, D.O.M., R.N., with Cosmetic Rejuvenation, "It looks as if Hillary has had fillers under her eyes and around her mouth. She's also likely had Kybella under her chin and Ultratherapy to tighten the loose skin around her jaw."