Kat Von D 's Lash Liner is a liquid eyeliner for your waterline that promises to be long-wearing and water-resistant. Kat has spent the last 4 years working on it because she was so desperate to find an inner eyeliner that didn't transfer. But does it actually work? We used our trusty Beauty Lab crew to try this waterproof eyeliner to see if it's as long-lasting as Kat Von D claims.


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