Lancôme Cils Booster XL Lash Primer Full Size — Conditioning, Lengthening Micro‑fiber Formula

Lancôme Cils Booster XL is a lash primer that primes, conditions, and amplifies mascara for visibly fuller, longer-looking lashes.

Designed as the first step in your eye-makeup routine, Cils Booster XL creates a refined base that improves mascara hold and appearance while delivering conditioning ingredients to support lash softness. The lightweight, micro-fiber formula smooths and separates lashes so mascara glides on evenly without clumping, and the soft-fluff brush reaches roots to tips for full coverage.

How does this primer improve my mascara finish?

Cils Booster XL acts like a foundation for mascara: it builds subtle length and volume while smoothing the lash surface so mascara adheres more evenly. The result is enhanced colour payoff, intensified lift, and extended wear with less flaking or smudging.

• Micro-fibers add visible length and density before mascara.
• Provides a smooth, tacky layer that helps mascara cling for longer.
• Prevents clumping by separating each lash for cleaner application.

What nourishing ingredients are included and why do they matter?

The primer is formulated with vitamin E and D-Panthenol alongside ultra-fine fibers to condition lashes while enhancing appearance. These ingredients help maintain lash softness and reduce brittleness, supporting healthier-looking lashes with regular use.

• Vitamin E: antioxidant support for lash resilience.
• D-Panthenol: conditioning agent that helps improve softness.
• Micro-fibers: create instant visual length and volume.

Is Cils Booster XL suitable for sensitive eyes and contact lens wearers?

Yes — the formula is designed to be gentle and non-irritating, making it appropriate for many people with sensitive eyes and those who wear contact lenses. Its soft-fluff brush and smooth texture minimize tugging during application, helping maintain comfort throughout use.

• Non-irritating formulation suitable for delicate eye areas.
• Brush shape ensures even, painless application from root to tip.
• Works well under a variety of mascaras, including waterproof options.

How do I use the primer to get the best results?

Apply Cils Booster XL to clean, dry lashes before mascara in short, gentle strokes from base to tip. Allow a few seconds for the primer to set; then apply your usual mascara in one or two coats for amplified effect. For extra drama, layer mascara after the primer once it feels slightly tacky.

• Start at the lash root and wiggle the brush upward for full coverage.
• Wait briefly for the primer to bond before applying mascara.
• Combine with volumizing or lengthening mascaras depending on desired look.

Who is this for? Lancôme Cils Booster XL is ideal for anyone seeking a polished mascara base that boosts volume and length while offering conditioning benefits. It suits daily users who want smoother, clump-free mascara application, beauty enthusiasts aiming for longer-wear makeup, and those with sensitive eyes or contacts who need a gentle primer. Whether you’re building a dramatic evening look or refining your everyday mascara, this primer helps create a clean, amplified lash canvas.

Ingredients

POLYBUTENE • PENTAERYTHRITYL TETRAISOSTEARATE • C18-36 ACID TRIGLYCERIDE • TRIDECYL TRIMELLITATE • BIS-DIGLYCERYL POLYACYLADIPATE-2 • SILICA DIMETHYL SILYLATE [NANO] / SILICA DIMETHYL SILYLATE • CALCIUM SODIUM BOROSILICATE • PENTYLENE GLYCOL • CAPRYLYL GLYCOL • MICA • PENTAERYTHRITYL TETRA-DI-T-BUTYL HYDROXYHYDROCINNAMATE • CI 77891 / TITANIUM DIOXIDE • CI 77491 / IRON OXIDES • BENZYL BENZOATE • BENZYL ALCOHOL • TIN OXIDE • CI 45380 / RED 22 LAKE • ALUMINA • CI 15985 / YELLOW 6 LAKE • GERANIOL • LIMONENE • PARFUM / FRAGRANCE (F.I.L. B253649/1).