Do YOU Reckon Celebs Use The Products They Endorse?

Does Andie McDowell colour her gruaig with Excellence 'crem'? Does Kate rock 'The London look' with Rimmel, or is she more a Guerlain gal, like the rumours claim? Does Jane Fonda leave the ageing process entirely to L'Oreal Paris, and is the puke-making Davina McCall really leaving it up to Garnier to cover "all my greys, Muuuuuhhhm?"

In short, do you believe that when a 'sleb takes cash from a beauty brand in return for a wooden uttering of 'because. I'm. worth. It (hello Linda Evangalista!)', that they actually use that product?

Or perhaps - and work with me here, 'cos it's a stretch - do you think it's all a load of boswellox?