If you want to add some makeup to your lips, then this lip liner might be a good choice. This lip liner has not been tested on animals.
From Boots
Nyx Professional Make Up Slim Lip Liner Pencil espresso espresso
Notino
NYX Professional Makeup Slim Lip Pencil precise lip pencil shade 820 Espresso 1 g
Luxplus
NYX Slim Lip Pencil Espresso 1 pcs