< ul >< li > Up To 12 Hour Application : The pens last up to 12 hours for one application . The formula is kiss - proof , transfer - proof and food proof . li >< li > Easy To Use : The lip stain colour is easy to apply with the precision felt tip . There isn ' t a need for a setting material or application . li >< li > Cruelty - free Vegan Formula : The vegan formula is cruelty - free ! li >< li > Reversible Nib : You can reverse the felt tip at any time . Prolonging the life of the pen . li >< li > Strong Bold Colour : The pens have a rich deep colour that applies beautifully on to your lips . The matte colour is translucent . li >< li > Streak & Smudge Free : Apply with the pen - like felt nib for a streak & smudge - free professional look li > ul >< br >< div > < p > < span > Colour the lips with the long - lasting semi - permanent waterproof pens . The long - lasting lip marker does not smudge or fade as they are kiss - proof , transfer - proof and food proof , so the colour stays strong throughout the day . The hydrating colours are bright and vibrant and easy to apply with the pen - like felt nib for a streak & amp ; smudge - free professional look . The colour lasts for up to 24 hours . The felt tip nib can be reversed so it lasts twice as long . Stargazer Lip stain pen # 6 got 9 / 10 in the all - day test on the Daily Mail Online website , the clear winner against other brands . span > p > div >