Stay All Day waterproof liquid eyeliner from Stila was voted the best smudge-proof eyeliner by the Good Housekeeping Research Institute. Neo Noir Liquid Liner from Napoleon Perdis came in second.
The Stila eyeliner didn't smudge when wet, and testers ranked the cosmetic high for staying intact all day. Users also stated that the felt tip of the eyeliner made for a defined line on the bottom lash.
Neo Noir Liquid Liner went on smoothly and lasted all day, according to those who tested the product for Good Housekeeping. After testers splashed their faces with water, only a small amount of smudging was evident.