The Infallible 24H Brow Mascara from L’Oréal Paris is a fiber charged brow mascara designed to reveal fuller-looking brows with up to 24 hours of wear. In the Blonde variant, this product is crafted to adhere to hair, boosting volume and density in a single sweep. It features a 3D micro-grip brush that catches brow hairs precisely for a natural, defined finish that works on a range of brow types.
Benefits at a glance
- Up to 24H Longwear formulation helps color and shape stay put throughout the day.
- Fiber charged formula adheres to hair to reveal up to 2x fuller looking brows in consumer testing with 26 women.
- 3D micro-grip brush provides precise application to catch and taming brow hairs in a single stroke.
- 7 shades available ensures a natural match for most brow tones, with Blonde as a refined light option.
- Built to work across brow types, delivering density without weighing hairs down.
Key ingredients and what they do
- Aqua / Eau — the base for the formula, creating a smooth application across brows.
- Acrylates Copolymer — helps the product adhere to brow hairs for longevity.
- Alcohol Denat. — aids in quick drying of the mascara after application.
- Butylene Glycol — acts as a humectant to maintain product stability on lashes and brows.
- Acrylamide/Sodium Acryloyldimethyl Taurate Copolymer — thickening agent that improves texture and cling to hair.
- Isohexadecane, Pentylene Glycol, Propylene Glycol — solvents that help the product glide smoothly.
- Ammonium Polyacryloyldimethyl Taurate — thickener that supports brush performance.
- Rayon — provides fiber-like structure within the formula to help with volume perception.
- Polysorbate 80 — enables even distribution of product on the brow hairs.
- Sodium Dehydroacetate — preservative to maintain product integrity.
- Caprylyl Glycol — humectant contributing to comfortable wear.
- Steareth-20 — surfactant aiding brush performance.
- Sorbitan Oleate — emulsifier to improve consistency.
- Panthenol — provitamin B5, offers conditioning properties for brow hairs.
- Citric Acid — pH adjuster that helps maintain product stability.
Who this is for and usage tips
This product is ideal for anyone wanting defined, fuller-looking brows with long-lasting hold. The fiber-charged formula and micro-grip brush are designed to lift and shape, even on brow hairs that are fine or sparse. To apply, use short upward strokes to boost volume and density. Build more product for a denser look. Always follow the included product instructions for usage to ensure best results.
Important safety notes: test on a small area before use. Do not apply to irritated or broken skin. If irritation occurs, discontinue use. Keep out of reach of children.
Disclaimer: This product is not intended to diagnose, treat, cure, or prevent any disease. Always read and follow the product label. Consult a healthcare professional if you have any health concerns.



















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