Is wearing make-up a 'betrayal' or more like wearing a 'mask'?

A set of before and after photos that show the dramatic difference between a woman with and without make-up have sparked an internet debate about cosmetics.

Posted by make-up artist Melissa Murphy, the images, simply captioned: 'Make-up. That's it,' show a bare-faced woman with acne scars and shiny skin, and then her transformation after putting on make-up, with thicker eyebrows, flawless looking skin and a seemingly thinner face. 

The stark difference between the images has sparked a debate on Reddit, with some internet users labeling make-up in general a 'betrayal' because it hides a woman's true self.

Reddit user plokoonismyfave initiated the war of words when he wrote: 'The left is uglier than the right, but beauty is subjective. The right is her wearing a (figurative and literal) mask.'

One person replied that a woman's personality counts more than her make-up routine, writing: 'You only feel "betrayed" because you put too much value on looks.'