Lancôme Cils Booster XL Lash Primer Travel Size — Micro-fibers & Vitamin B5 for Fuller, Longer Lashes

Lancôme Cils Booster XL is a lash primer that creates a fuller, longer-looking base for mascara while conditioning lashes with micro-fibers, vitamin B5 and vitamin E.

This travel-size primer works as a preparatory step before mascara to enhance volume, length and curl without weighing lashes down. Its lightweight, creamy formula adheres to lashes to build structure and improve how mascara applies and lasts. The formula also contains nourishing ingredients intended to leave lashes looking healthier and feeling softer over time, making it a smart addition for anyone who wants more dramatic but natural-looking results from their mascara routine.

How does this primer change my mascara’s finish?

The primer adds a thin, even coating that magnifies what your mascara delivers: more visible length, thicker-looking strands and improved curl retention. Applied first, it helps mascara adhere in a consistent layer so clumping is reduced and coverage looks uniform.

• Micro-fibers build length and fill gaps between lashes for a longer silhouette.
• Even base reduces mascara streaking and flaking for a cleaner finish.
• Soft-fluff brush ensures thorough coverage from root to tip.

Will it make my lashes feel heavy or stiff?

No—this primer is formulated to stay lightweight while depositing fibers and conditioning agents. The result is enhanced definition without the crunchy or spidery texture that some layered products can cause.

• D-Panthenol (vitamin B5) conditions without buildup.
• Vitamin E helps smooth the lash surface for soft movement.
• Thin, buildable formula lets you control intensity without stiffness.

How do I apply it for best results, especially on busy mornings?

Use the primer as the very first step in your eye makeup routine: brush through clean, bare lashes from base to tip, then apply your chosen mascara once the primer sets. For a faster routine, one light coat of primer followed by mascara gives an immediate boost; add a second coat only if you want more dramatic volume.

• Start at the roots and wiggle the brush upward for even distribution.
• Let the primer set for a few seconds before applying mascara.
• Use the soft-fluff wand to separate lashes and avoid clumps.

Is this primer suitable for sensitive eyes or contact lens wearers?

Formulated to be gentle, this primer is suitable for a wide range of users, including those with sensitive eyes and contact lens wearers. Still, if you have specific sensitivities, patch testing a small area before regular use is recommended.

• Designed to minimize irritation for sensitive eyes.
• Non-irritating texture intended for contact lens users.
• Always discontinue if you experience redness or discomfort.

Who is this for: Lancôme Cils Booster XL travel-size primer is ideal for anyone who wants to intensify their mascara’s effects while caring for lashes—travelers, makeup minimalists who still crave visible lift, or beauty enthusiasts layering their look. It’s especially useful for people who want a controlled, buildable base that smooths and nourishes lashes without heaviness. If you’re after fuller, longer-looking lashes with a soft, conditioned feel and quicker mascara application, this primer is designed to slot into your routine with minimal fuss.

Ingredients

TALC • PARAFFINUM LIQUIDUM / MINERAL OIL / HUILE MINERALE • SQUALANE • STEARIC ACID • ZINC LAURATE • GLYCERYL STEARATE • TRIETHANOLAMINE • CHOLESTEROL • ALUMINUM DIMYRISTATE • ALUMINUM HYDROXIDE • LANOLIN • PETROLATUM • BHT • BUTYLPARABEN • PARFUM / FRAGRANCE • LINALOOL • GERANIOL • ISOEUGENOL • ALPHA-ISOMETHYL IONONE • COUMARIN • CINNAMYL ALCOHOL • LIMONENE • HYDROXYCITRONELLAL • HYDROXYISOHEXYL 3-CYCLOHEXENE CARBOXALDEHYDE • CITRONELLOL • BUTYLPHENYL METHYLPROPIONAL • HEXYL CINNAMAL • BENZYL ALCOHOL • BENZYL BENZOATE • BENZYL SALICYLATE ● [+/- MAY CONTAIN