TOM CRUISE is "so pretty" as he takes drastic measures to defeat age – by raiding KATIE HOLMES stash of beauty and makeup supplies.

The 48-year-old star has been double dipping his wife Katie’s beauty and makeup drawers to remain youthful looking.

"Tom is in major midlife crisis mode," revealed a source.

"He’s freaking out over the new lines on his face, the gray hairs on his head and on his face when he shaves.

"He has started applying Katie’s high-priced facial creams, cleansers and even her makeup – and he loves the results!"

Tom has become a daily user of Katie’s pricey cosmetics, including a face cream that retails for $320. He also uses the same facial masks she uses on a daily basis, say insiders.

"He even slathers on Katie’s foundation before public events and lightly applies her mascara to make his eyelashes look fuller," revealed the source.

"Tom is incredibly vain, and he’s willing to go to great lengths to look good next to his younger co-stars.

"Katie is horrified that Tom has resorted to raiding her beauty supplies," revealed the source.

It’s a real Mission Impossible.