Research shows that others see you as 20 per cent more attractive than you think you are. That's because, when you look in the mirror, you're simply judging yourself on looks. All you can see is your reflection - but none of the personality.
Of course, it's important to make the best of what you've got,' says Dr Debra. 'But, there's so much more to beauty than looks alone.
'A great figure, shiny hair and lovely skin may turn heads and get you noticed, but it takes more than that to be attractive.
'Beauty is also about the way you move, speak and express yourself. It's about good health, warmth, spontaneity and charisma.'
Dr Debra and Dr Eva believe anyone can learn how to feel and look more beautiful.
'The Beauty Prescription isn't just a guide to show you how to make yourself more physically perfect,' says Dr Debra. 'It's also a guide to help you develop your inner beauty.'
So, if you feel you could do with an overhaul, here are their top tips on how to become more beautiful inside and out.