Physicians Formula Super Slim Liquid Eyeliner — Ultra Black, Waterproof Precision Brush & Lash-Boosting Complex

Physicians Formula Eye Booster Super Slim Liquid Eyeliner is an ultra-fine, waterproof liquid liner with a precision brush tip and a lash-conditioning complex designed for sensitive eyes.

This eyeliner delivers razor-sharp definition in a compact, easy-to-control brush that glides on rich, smudge-resistant color. Formulated to be gentle on delicate skin and eyes, it dries quickly and resists water and wear while providing a conditioning boost to lashes with every application. The ultra-black shade creates bold lines, while the narrow tip helps you craft anything from barely-there definition to dramatic wings.

How precise is the super slim brush tip for everyday looks?

The slender brush is engineered for fine control, making straight, curved, or winged lines easier to draw with fewer strokes. Because the tip is so narrow, it’s ideal for tightlining, adding subtle lash definition, or building up intense cat-eye shapes without wobble.

• ultra-fine brush for hairline-thin strokes and steady control
• smooth ink flow prevents skipping and uneven lines
• works well for both minimalist and dramatic eyeliner styles

Will this eyeliner stay put through the day and in humid conditions?

The formula is water-resistant and formulated to dry quickly, offering long-lasting wear that minimizes smudging and transfer. It’s designed to endure normal daily activities and occasional humidity, keeping lines sharp from morning through evening.

• quick-drying pigment reduces smears after application
• waterproof formula resists light moisture and humidity
• dense ultra-black color maintains intensity over hours

What benefits does the Lash-Boosting Complex provide?

Rather than only delivering color, this eyeliner includes a conditioning complex intended to help support lash health over time. While not a treatment, the added ingredients help keep lashes feeling conditioned and less brittle after regular use compared with standard liners.

• formulation contains conditioning agents to help fortify lashes
• applies directly along the lash line for targeted care
• suitable for daily use with eye-safe ingredients

Is this eyeliner safe for sensitive eyes and aligned with ethical standards?

Yes — the product is developed under Physicians Formula’s long-standing focus on sensitive-skin-friendly cosmetics. It is hypoallergenic and created without a long list of harsh ingredients, and the brand maintains cruelty-free and vegan standards for this collection.

• hypoallergenic formulation designed for delicate skin and eyes
• vegan and cruelty-free — not tested on animals
• manufactured with ingredient restrictions to reduce irritation risk

Who is this for? This eyeliner suits anyone who wants pinpoint precision and dependable, water-resistant wear—especially those with sensitive eyes or who prefer products made without animal testing. It’s a good pick for makeup beginners who need a steady, forgiving tip and for experienced users who demand fine control for professional-looking wings and tightlines, all in a deep ultra-black shade.

Ingredients

Water/Eau, Propylene Glycol, Acrylates Copolymer, Butylene Glycol, Styrene/Acrylates Copolymer Acrylates/Ethylhexyl Acrylate Copolymer, Acrylates/Dimethylamino-Ethyl Methacrylate Copolymer, Phenoxyethanol, Simethicone, PPG-2 Methyl Ether, Caprylyl Glycol, Ammonium Acrylates Copolymer, AMP-Acrylates Diacetoneacrylamide Copolymer, Aminomethyl Propanol, Potassium Sorbate, Sodium Dehydroacetate, Dextran, Acetyl Tetrapeptide-3, Trifolium Pratense (Clover) Flower Extract, Black 2 (CI 7266), Blue 1 (CI 42090), [2206-1NE].