Physicians Formula Eye Booster Lash-Enhancing Eyeliner Serum — Deep Brown, Long-Wear & Hypoallergenic

Physicians Formula Eye Booster is a 2-in-1 liquid eyeliner and lash-enhancing serum that defines the eye instantly while delivering a lash-targeted boosting complex at the base of the lashes.

This hybrid formula combines precise liquid liner performance with a fortifying lash complex developed to sit at the lash root, giving the look of fuller, healthier lashes over time while providing long-wear, water-resistant definition. The slim felt-tip applicator makes application quick and controlled, and the formulation is dermatologist approved, hypoallergenic, vegan, and cruelty-free—designed to be gentle for sensitive eyes and contact lens wearers.

How does this eyeliner-serum work to enhance lashes without a separate product?

The product deposits a lash-boosting complex directly where lashes emerge, while the liquid liner component creates a defined line in one step. You get immediate eye definition plus ongoing conditioning benefits from the same application, removing the need for a separate serum routine.

• Precision felt-tip delivers pigment and serum exactly at the lash base.
• Dual-action formula balances instant color payoff with conditioning ingredients.
• Wearable daily as part of makeup routine—no extra steps required.

Is the Eye Booster safe for sensitive eyes and contact lens wearers?

Yes — the formula is hypoallergenic and dermatologist approved for sensitive eyes and contact lens wearers. It’s free from common harsh ingredients and is cruelty-free and vegan, making it a safer option for many users seeking gentler eye makeup.

• Dermatologist approved and hypoallergenic formulation.
• Suitable for contact lens wearers and those with sensitivity.
• Formulated without over 150 harsh ingredients commonly avoided.

How long does the color last and how does it handle water or smudging?

The Japanese-derived formula is long-wearing, water-resistant, and smudge-resistant for reliable all-day definition. While it resists moisture and light rubbing, removal with a proper makeup remover designed for long-wear eye products is recommended to avoid tugging.

• Long-wearing pigment keeps liner crisp throughout the day.
• Water-resistant and smudge-resistant for daily activity tolerance.
• Best removed with oil-based or dual-phase eye makeup remover.

How should I apply the Eye Booster for best results?

Use the fine felt tip to draw a steady line as close to the lash line as possible, depositing the boosting complex at the roots. Start with thin strokes and build intensity; for a bolder look, allow the first layer to set then add a second pass.

• Angle the pen parallel to the lash line for precise placement.
• Apply short, controlled strokes from inner to outer corner.
• For maximum lash contact, press lightly at the lash base during application.

Who is this for? This product suits anyone who wants to simplify their eye routine by combining liner and lash care in one tool—especially people with sensitive eyes, contact lens wearers, or those seeking a cruelty-free, vegan option. It’s ideal for users who prefer a neat, natural-looking definition in deep brown with the convenience of a single-step application and a formula engineered for long wear and gentle conditioning.

Ingredients

Water. Ethylhexyl Acrylate/Methyl Methacrylate Copolymer. Butylene Glycol. Glycerin. Beheneth-30. Ammonium Acrylates/Methyl Styrene/Styrene Copolymer. Myristoyl Pentapeptide-17. 1,2-Hexanediol. Acrylates/Octylacrylamide Copolymer. Caprylyl Glycol. Ceteth-20. Ethylhexylglycerin. Pentylene Glycol. Polyglyceryl-3 Disiloxane Dimethicone. SD Alcohol 40. Sodium Polyaspartate. Phenoxyethanol. Sodium Hydroxide. Disodium EDTA. Black 2. Iron Oxides.