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Lancôme

Lancôme Cils Booster XL Enhancing Lash & Mascara Primer - Infused with Micro-fibers, Vitamin B5 and Vitamin E - Boosts Mascara Volume, Length & Curl

  • Based on 6,254 reviews
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Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon
Arrives Wednesday, Jul 8
Order within 21 hours and 42 minutes
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Size: 0.19 Fl Oz (Pack of 1)


Features

  • LASH-ENHANCING PRIMER: Boost lash volume and length with this essential mascara base, specially designed to leave lashes looking smoother and fuller instantly.
  • CONDITIONING & NOURISHING: Enriched with micro-fibers, vitamin E, and conditioning D-Panthenol for healthy, stronger-looking lashes over time.
  • IMPROVES MASCARA PERFORMANCE: Creates the perfect base for your favorite mascara, enhancing its wear and effect for a voluminous, smudge-free finish.
  • SUITABLE FOR ALL LASH TYPES: Ideal for use on all lash types, leaving them soft and clump-free. Suitable for sensitive eyes and contact lens wearers.
  • EFFORTLESS APPLICATION: The soft-fluff brush ensures even application from root to tip, coating every lash with precision and ease.

Description

Enhancing Lash Primer Lash Idôle Monseiur Big Définicils Le 8 Hypnôse Hypnôse Drama Can I use Cils Booster XL without a mascara? Cils Booster's functions as both a lash primer and a lash mask. To use as a mask, simply apply onto clean lashes at night to condition and nourish your lashes & remove in the morning. Can I use Cils Booster XL with waterproof mascara? Yes, you can use Cils Booster XL with your favorite waterproof mascara. We suggest our Lancôme Lash Idôle Waterproof Mascara. Can I use Cils Booster XL if I wear contact lenses? Yes, Cils Booster XL is ophthalmologist-tested and is suitable for sensitive eyes & contact lens wearers.

Is Discontinued By Manufacturer ‏ ‎: No


Product Dimensions ‏ ‎: 1 x 1 x 5.5 inches; 0.18 ounces


Item model number ‏ ‎: 4336218858


Manufacturer ‏ ‎: Lancôme


ASIN ‏ ‎: B018ZXEO50


Best Sellers Rank: #845 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #3 in Eyelash Primers


Customer Reviews: 4.6 4.6 out of 5 stars


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jul 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Best eyelash primer ever
Size: 0.13 Fl Oz (Pack of 1)
Conditions your lashes while it adds volume and length to your lashes. Apply mascara seconds after primer dries and you can see what a difference it makes between not using the primer and using it. There’s NO CLUMPING and mascara lasts 2-3x longer.
Reviewed in the United States on June 27, 2026 by Nicole
    • Works so well
Size: 0.13 Fl Oz (Pack of 1)
Great as a primer for mascara. My mascara stays on so much better and looks much better
Reviewed in the United States on June 13, 2026 by Adriana Lapointe
    • Great lash conditioner
Size: 0.19 Fl Oz (Pack of 1)
Lancôme Cild Booster XL is a great addition to my eye makeup routine. It conditions my lashes and keeps my mascara on longer. It also has helped with lash growth.
Reviewed in the United States on May 4, 2026 by MC in SC
    • A must-have step for perfect lashes! A must-have step for perfect lashes!
Size: 0.13 Fl Oz (Pack of 1)
Review Image by The Magic Haul
I’ve been using this Lancôme lash primer for about a year now, and it has completely changed how my mascara looks. It does an amazing job at separating and defining my lashes before applying mascara, which helps prevent clumping and makes my lashes look longer and fuller. It goes on smoothly, dries quickly, and really helps my mascara last throughout the day. Even after consistent use, it hasn’t caused any irritation and has become a staple in my makeup routine. ✅ Pros: • Separates and defines lashes beautifully • Prevents clumping and enhances mascara performance • Long-lasting results • Gentle on lashes and eyes ⚠️ Cons: • A little pricier than drugstore primers, but worth it for the quality Very pleased with this product—highly recommend if you want to take your lash game up a notch! ... show more
Reviewed in the United States on August 1, 2025 Reviewed in the United States on August 1, 2025 by The Magic Haul
    • Not the holy grail BUT very good still :) Not the holy grail BUT very good still :)
Size: 0.13 Fl Oz (Pack of 1)
Review Image by Lindsay
It’s good! I’m still on the hunt for the *perfect* primer, but this works quite well for me in the meantime :) The product is quite thin for a primer, which is good imo, because primers tend to dry out on me so fast 🙄 I’m hopeful that this one will last longer! It’s also good because it won’t clump so much. This one doesn’t clump at ALL 🙌🏽 That said, this isn’t the most volumizing primer I’ve ever used. It’s definitely lengthening, but not so much volumizing. I tested it out today, as you can see in the photo. I first tried only one coat on the left eye shown. I wasn’t very impressed with that one. So i took everything off my left eye and redid it with 3 coats of the primer. And that time i got much closer to the results i was looking for :) And for anyone wondering, the best volumizing primer I’ve found thus far is the urban decay subversion primer (i also use their mascara—perversion—which is what I’m wearing in the photo). I used that one for a long, long time! But, as i mentioned before, it dries out so fast (and at that price point? Ugh 😭), AND it tends to clump your lashes together so you have to be really careful about separating them (i used a mechanical pencil lmao). I haven’t decided whether to get that one again. Just trying this one out for a while! That’s why i got the travel size :) ... show more
Reviewed in the United States on June 18, 2026 Reviewed in the United States on June 18, 2026 by Lindsay
    • Great product!
Size: 0.13 Fl Oz (Pack of 1)
Such a great travel and all time size. I actually prefer buying the travel size. Why do we need a really long handle on the curler to apply mascara? Makes zero sense to me. So I buy the travel ones!
Reviewed in the United States on June 7, 2026 by J. Love
    • Lancome lash booster
Size: 0.19 Fl Oz (Pack of 1)
I love this lash booster! It will lengthen and thicken your lashes. My best friend and I have been using this for years. We both love it! It goes on white then you apply mascara on top. The price isn't too bad at under $20 a tube.
Reviewed in the United States on June 29, 2026 by Genevieve Retherford
    • Game changer
Size: 0.19 Fl Oz (Pack of 1)
Love this stuff, worth every penny and has been a game changer.
Reviewed in the United States on June 9, 2026 by Elyse pedersen

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