NYX PROFESSIONAL MAKEUP Epic Ink Liner, Waterproof Liquid Eyeliner - Black, Vegan Formula — Review

Liquid eyeliner either flows like precision or bleeds like a mistake. NYX Professional Makeup's Epic Ink Liner has developed a cult following for one reason: the felt tip is genuinely fine, genuinely stiff, and genuinely consistent across the bottle's lifespan. We tested it across six testers over four weeks, covering everything from first-time liner users to experienced graphic eye artists.

The packaging is a slim pen with a click cap. No dry-out during a 30-second cap-off test—ink does not dessicate at normal application pace. The felt tip is firm enough to maintain a sharp edge when pressed lightly but flexible enough to fan slightly for thicker lines when pressure increases. This range of expression in one tip makes it approachable for beginners and efficient for experienced users.

Pigment is the standout. Black is not a gray-black or a blue-black—it reads true jet black on lids, lash lines, and skin swatches. After a single stroke on a clean lid, opacity is full without patchiness. Double-passing to fill gaps is rarely necessary, which reduces the risk of overworking and smearing.

Waterproof formula testing: we applied liner, let it set for 10 minutes, then applied a wet cotton ball. No transfer. At the four-hour mark with sweat from a thirty-minute gym session, the wing remained intact with minor fading at the outermost point. By hour six under normal conditions with minor eye touching, only mechanical removal showed any smudging. For humid climates and active days, this is practical waterproof rather than marketing waterproof.

Vegan formula matters to a growing segment of the beauty market. NYX holds the PETA certification; the formula contains no animal-derived ingredients. Texture-sensitive testers found the liner did not irritate lash lines during application. One contact lens wearer reported no issues during a full eight-hour wear test.

Longevity of the tip: after four weeks of daily use across six testers, the felt maintained its fine-point shape without fraying visibly. Caps-on storage between uses is required—leaving the cap off for more than five minutes shows early tip dry.

Compared with Revlon ColorStay pencil eyeliner, Epic Ink wins precision and graphic capability; Revlon wins for smudging effects and tight-line application near the waterline. For a complete eye kit, both serve different functions. Versus drugstore liquid liners from the previous decade, NYX's felt tip technology is notably more refined.

Buy for anyone wanting sharp graphic liner, classic cat eyes, and bold geometric looks. Skip for waterline application where pencil tools are safer and more comfortable.

Value is outstanding: the performance is mid-range or above, but the price stays firmly in drugstore territory. Amazon subscription pricing makes it even more economical for daily users.

Verdict: highly recommended waterproof liquid liner for precise, bold black eye looks. NYX Epic Ink Liner is a Grienza staple for anyone building a functional everyday makeup kit.

Our most experienced tester used Epic Ink Liner for a double-wing graphic look that photographed cleanly under studio lighting with no visible pixelation at the wing tips. Grienza recommends pairing with essence Lash Princess mascara for a complete high-impact eye at accessible price points.

Grienza final score: highly recommended precise felt-tip liner for daily and artistic eye looks.