The universal lip liner from Dior Backstage.
Dior Contour Universel is a totally transparent lip liner that suits all skin tones and all shades of lipstick. It smoothes and lines lips for a clean, precise lip contour and lasting hold. The makeup artist's well-kept secret, its formula contains transparent waxes that adapt to all skin tones and shades of lipstick, for perfectly defined lips that last 4 hours*.

*Test in use - 32 women

How to:
Start in the middle of the upper lip and draw a "V" shape on the Cupid's bow. Then define the contours starting at the centre of the lips and gradually lightening until the corner. For more intense lipstick colour and to optimize hold, fill the inner part of the lips in with pencil.