Responding to rumors that the Transformers actress has a taste for the injectables, Megan Fox posted photos on Facebook in various states of facial contortion Botox would not permit.

She titled the photo album - which can be seen here - THINGS YOU CANT DO WITH YOUR FACE WHEN YOU HAVE BOTOX.

The visible wrinkles are convincing evidence that the 25-year old actress has not used Botox recently, but they don't prove that she never has.

Fox's suspected cosmetic surgeries have long been a subject of speculation, with many believing that she has had breast and lip augmentations and a nose job, among other procedures.

Fox is considered by many to be one of the most beautiful women in the world, but her cartoonish perfection has called into question how natural a beauty she is.

Fox got her start as an actress playing a bit part on the ABC sitcom Hope and Faith. She met her now-husband, Brian Austin Green, on the set of the show.

Fox rose to superstardom as the love interest of Shia LaBeouf's character in Transformers. She appeared in the first two Transformers movies but was recast for the third installment.

LaBeouf recently confessed that he and Fox had an affair on set, possibly while she was dating Austin Green.