The Vanilla Sky actor, 48, is said to be desperate to hide the tell-tale signs of ageing.
A source told the National Enquirer, 'Tom is in major mid-life crisis mode.
'He's freaking out over the new lines on his face, the grey 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 make-up and he loves the results.??
'He even slathers on Katie's foundation before public events and lightly applies her mascara to make his eyelashes look fuller.'