i have this liner in 'charcoal gray' or something like that, lol. i apply it with my sk bent liner brush.
this a mehh product for me. . . yes, the liner is opaque...a nice rich gray.
BUT.. by the end of the day i looked in the mirror & was shocked to find that my eyeliner has almost completely faded away! i was left with gray flakes here and there. i don't know why this happened (i used udpp that day).
so if youre looking for a liner that isnt necessarily longwearing (even tho its called a long-wearing gel liner?) and is opaque, that you might like this. otherwise i don't reccomend.