Sacheu Liquid Eyeliner Pen STAY-N Long-Wear Waterproof — 360° Flexible Tip, Smudge-Proof Precision

The Sacheu Liquid Eyeliner STAY-N is a waterproof, smudge-resistant liquid eyeliner pen with a 360° flexible felt tip for ultra-precise lines and long-lasting wear.

Designed for effortless, high-definition eye looks, the Sacheu STAY-N liner combines a quick-dry, highly pigmented formula with a unique flexible applicator to produce crisp lashes and clean wings that last. The vegan, cruelty-free blend includes conditioning botanicals and peptides, so wearers can achieve bold definition while supporting lash appearance. Whether you need a barely-there tightline or a dramatic cat eye, this pen delivers consistent, transfer-resistant color that resists fading, feathering, and smudging throughout the day.

How precise is the 360° flexible felt tip for everyday use?

The 360° flexible tip is engineered to bend and maintain contact with the lash line, making both short, controlled strokes and long, sweeping wings simple. Its flexibility limits skipping and gives a steady ink flow so novices and pros can create thin or bold lines without switching tools. The ergonomics reduce hand strain for extended application sessions.

• 360° felt-tip design for consistent ink contact
• Fine to bold line control in one pen
• Smooth gliding action that minimizes tugging
• Works well for tightlining, lining, and winged looks

Will this eyeliner stay put through sweat, humidity, and long days?

Sacheu STAY-N features a water-resistant, quick-dry formula formulated to resist transfer and fading in humid or active conditions. Once set, the matte pigment adheres to skin without smearing or running, so makeup stays defined from morning through evening. Removal requires an oil-based cleanser for complete, comfortable takeoff.

• Quick-dry, water-resistant pigment
• Long-wear, transfer- and fade-resistant performance
• Holds shape in heat and humidity
• Removes with oil-based cleansers for gentle removal

Is this formula suitable for sensitive eyes and ethical shoppers?

The formulation is vegan and cruelty-free and includes conditioning ingredients such as honeysuckle extracts, antioxidants, and peptides that help support the look of healthy lashes. The creamy, lightweight texture applies without dragging, which can be more comfortable for sensitive eyelids. Patch-test if you have specific sensitivities or allergies to botanical extracts.

• Vegan and cruelty-free formula
• Infused with peptides and honeysuckle for conditioning benefits
• Lightweight, non-tugging application for sensitive lids
• Patch-test recommended for known ingredient sensitivities

How do I get the sharpest wing or thinnest line with this pen?

Start at the inner corner and use the side of the slim felt tip to draw short, close-to-lash strokes toward the outer corner, building thickness gradually. For a wing, follow the lower lash line angle, draw an upward guide, then connect it to a center lid line while staying tight to the lashes. The pen’s steady flow helps you refine edges with small corrective strokes.

• Use the tip’s side for fine, tightlining strokes
• Lay a small guide line from the lower lash line for wings
• Build thickness gradually instead of applying heavy pressure
• Correct edges with tiny short strokes rather than big sweeps

Who is this for: Sacheu Liquid Eyeliner STAY-N is aimed at anyone who wants dependable, long-lasting eye definition—budding makeup users seeking an easy-to-control pen, professionals who need a resilient, pigmented liner for client work, and ethically minded shoppers who prefer vegan, cruelty-free cosmetics. It’s particularly useful for people who want quick-drying, smudge-resistant wear for busy days, humid climates, or long events without compromising precise application.

Ingredients

Water/Aqua, Acrylates Copolymer, Propylene Glycol, Phenoxyethanol, 1,2-Hexanediol, Tocopherol, Butylene Glycol, Caprylyl Glycol, Isatis Tinctoria Leaf Extract, Pentylene Glycol, Vitis Vinifera (Grape) Seed Extract, Polygonum Multiflorum Root Extract, Myristoyl Pentapeptide-4, Ethylhexylglycerin, Black 2/CI 77266.