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As of May 12, 2026, Cosnori Super Proof Fitting Brush Eyeliner is cheapest at OLIVE YOUNG for $16.10.
A precise liquid brush eyeliner with an ultra-fine 0.1mm brush tip for clean, defined lines.
Available in 4 shades (Black, Black Brown, Brown, and Ash Gray), the Superproof formula adheres without smearing for long-lasting wear.
In a 100-member tester panel, it achieved 98% application satisfaction, 96% smudge-free rating, and 92% long-lasting wear satisfaction.
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No price drops in the last 90 days. The all-time low was $9.96 at OLIVE YOUNG on March 23, 2026.
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Find Cosnori Super Proof Fitting Brush Eyeliner on Alencia — currently available at one retailer. Set a free price alert and get notified the next time the price drops.
