Hollywood superstar Brad Pitt's secret for staying fresh on the go has been revealed - he rubs baby wipes on his armpits.

The dad-of-six passed on his tip for beating body odor while on the run to Inglourious Basterds co-star Eli Roth.

"After a scene, Brad had to stand next to me for a close-up shot, and he said, 'Damn, you're ripe,'" revealed Roth.

"I said, 'I didn't have time to shower.'

"He said, 'Baby wipes, man, baby wipes.'"

Roth says Pitt told him, "All you've got to do is just take... a couple of quick wipes under the pits."

Roth, who plays a baseball-bat swinging "Basterd," Sgt Donny Donowitz in the World War II flick, admitted Pitt's advice stopped him getting sweaty on set.

"I thought that was the greatest tip," the Death Proof star said. "If I ever started to smell like a bear, I would just use a couple of baby wipes."

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