Lancome Cils Booster XL is a white mascara primer designed to create an even surface for your mascara, enhancing length, volume, and curl over time. The formula is infused with micro-fibers, Vitamin B5, and Vitamin E to condition lashes while delivering a plush, luxurious feel.
What It Is
Get plush, voluminous, strengthened lashes with a sweep of this innovative white mascara primer.
What It Does
Gliding on smoothly and evenly, each coat creates an even surface layer to maximize the results of your favorite mascara. With a conditioning formula for visible performance, this mascara primer is infused with micro-fibers, Vitamin B5, and Vitamin E so lashes appear longer and fuller. The revitalizing lash and mascara primer formula helps improve lash results, thickness, and curl over time. White in color, Cils Booster XL leaves lashes feeling luxurious and soft, while allowing the pigment of your favorite mascara to stand out, thus creating an intense and rich false-lash look.
How To Use
As a mascara primer base coat: Apply from roots to tips of eyelashes, but do not wait until Cils Booster XL is dry before coating lashes with mascara. Coat lashes with mascara for desired look, or until white mascara is no longer visible. For optimal color, intensity, and a false-lash look, apply two coats of mascara primer to bottom and top lashes before applying mascara.
As a nighttime eyelash conditioning serum: After cleansing the face and finishing your normal nighttime beauty routine, apply Cils Booster XL to bare lashes. Allow it to fully dry before sleep.
Key Ingredients and Benefits
- Micro-fibers for added length and fullness
- Vitamin B5 for conditioning and strength
- Vitamin E for nourishment and soft feel
The product is designed to provide an even base that enhances the color payoff of your mascara, while offering conditioning benefits that may contribute to healthier-looking lashes over time.
Usage Scenarios
- Everyday dramatic lashes: Use as a primer before applying your preferred mascara to achieve a fuller, longer-looking lash line.
- Nighttime conditioning: Wear as a serum to keep lashes moisturized and prepared for sleep, potentially supporting lash health.
Note: The product description includes promotional text about discounts on ADillard's Credit Card, which may be time-sensitive information and not essential to the cosmetic properties of the primer itself.

BEST Mascara Tips | Make Your Lashes Look Amazing!
Practical Considerations
Because the formula is white, it provides a visible base until you apply mascara, helping ensure an even coat. When layering, two coats of primer followed by mascara are recommended for a bold, false-lash look. The primer’s conditioning ingredients aim to improve lash feel and flexibility.

BEST Mascara Tips | Make Your Lashes Look Amazing!
Table: Core Features at a Glance
| Feature | Benefit |
|---|---|
| Color | White base to guide application and amplify mascara pigment |
| Key ingredients | Micro-fibers, Vitamin B5, Vitamin E |
| Primary use | Mascara primer base for increased length, volume, curl |
| Secondary use | Nighttime conditioning serum for lashes |
| Application tip | Apply two coats on top and bottom lashes before mascara for optimal intensity |
In sum, Lancome Cils Booster XL acts as a protective, conditioning base that helps your mascara perform at its best, while offering optional nighttime benefits for lash care.