Top doc says TATUM O’NEAL’s  face has undergone some major renewal  including Botox and MORE!

Tatum, 49,  was snapped while on the set of Squirrels to the Nuts in New York City on Wednesday and Dr. Anthony Youn, who has not treated the Oscar winner, told RadarOnline that her face has “drastically changed” over the years.

“Although weight gain can make a face look fuller, the amount of fullness is impressive,” Dr. Youn said of Tatum’s face.

“I suspect that she may have undergone injections of fat into her cheeks, which can occasionally balloon with massive weight gain.”

Along with injections, Dr. Youn of Youn Plastic Surgery, thinks Botox and chemical peels may account for her radiant looking skin.

“Her skin is smooth and pristine, which may be due to Botox injections and a series of chemical peels,” he concurs.