ColourPop BFF Liquid Liner Numero Uno drawing bold, jet‑black swatches, felt‑tip pen delivering precise, smudge‑resistant lines against a white backdrop, ideal for sharp wings and everyday definition. Sharp black cat-eye wing defining the upper lash line, applied with ColourPop BFF Liquid Liner in Numero Uno, on a close-up brown eye with natural lashes and smooth skin. ColourPop BFF Liquid Liner in Numero Uno draws a crisp black wing along the upper lash line, defining a brown eye over pastel shimmer shadow in lavender, sky blue, mint, and lemon with inner-corner sparkle and a groomed brow. ColourPop BFF Liquid Liner in The Hills swatched as a teal‑green heart on a forearm, shown with additional shade swatches and The Line Up boxed set featuring a heart cutout - demonstrating a crisp, matte, long‑wear line. ColourPop BFF Liquid Liner The Hills shown uncapped with a fine felt tip alongside other shades, creating star swatches on white paper next to a pastel LINE UP box, showcasing the precise liquid eyeliner pen. ColourPop Graceland BFF Liquid Liner creates a bold white squiggle beside multicolor swatches, the felt‑tip pen and doodled white barrel angled on a lavender background, showcasing precise application and opaque, quick‑dry wear. Felt-tip applicator delivering precise black lines, shown as a close-up of the ColourPop BFF Liquid Liner in Numero Uno, with the sharp black tip and glossy black pen housing centered against a clean white background.
ColourPop BFF Liquid Liner Numero Uno drawing bold, jet‑black swatches, felt‑tip pen delivering precise, smudge‑resistant lines against a white backdrop, ideal for sharp wings and everyday definition.
 Sharp black cat-eye wing defining the upper lash line, applied with ColourPop BFF Liquid Liner in Numero Uno, on a close-up brown eye with natural lashes and smooth skin.
 ColourPop BFF Liquid Liner in Numero Uno draws a crisp black wing along the upper lash line, defining a brown eye over pastel shimmer shadow in lavender, sky blue, mint, and lemon with inner-corner sparkle and a groomed brow.
 ColourPop BFF Liquid Liner in The Hills swatched as a teal‑green heart on a forearm, shown with additional shade swatches and The Line Up boxed set featuring a heart cutout - demonstrating a crisp, matte, long‑wear line.
 ColourPop BFF Liquid Liner The Hills shown uncapped with a fine felt tip alongside other shades, creating star swatches on white paper next to a pastel LINE UP box, showcasing the precise liquid eyeliner pen.
 ColourPop Graceland BFF Liquid Liner creates a bold white squiggle beside multicolor swatches, the felt‑tip pen and doodled white barrel angled on a lavender background, showcasing precise application and opaque, quick‑dry wear.
 Felt-tip applicator delivering precise black lines, shown as a close-up of the ColourPop BFF Liquid Liner in Numero Uno, with the sharp black tip and glossy black pen housing centered against a clean white background.
ColourPop BFF Liquid Liner Numero Uno drawing bold, jet‑black swatches, felt‑tip pen delivering precise, smudge‑resistant lines against a white backdrop, ideal for sharp wings and everyday definition. Sharp black cat-eye wing defining the upper lash line, applied with ColourPop BFF Liquid Liner in Numero Uno, on a close-up brown eye with natural lashes and smooth skin.
 ColourPop BFF Liquid Liner in Numero Uno draws a crisp black wing along the upper lash line, defining a brown eye over pastel shimmer shadow in lavender, sky blue, mint, and lemon with inner-corner sparkle and a groomed brow.
 ColourPop BFF Liquid Liner in The Hills swatched as a teal‑green heart on a forearm, shown with additional shade swatches and The Line Up boxed set featuring a heart cutout - demonstrating a crisp, matte, long‑wear line.
 ColourPop BFF Liquid Liner The Hills shown uncapped with a fine felt tip alongside other shades, creating star swatches on white paper next to a pastel LINE UP box, showcasing the precise liquid eyeliner pen.
 ColourPop Graceland BFF Liquid Liner creates a bold white squiggle beside multicolor swatches, the felt‑tip pen and doodled white barrel angled on a lavender background, showcasing precise application and opaque, quick‑dry wear.
 Felt-tip applicator delivering precise black lines, shown as a close-up of the ColourPop BFF Liquid Liner in Numero Uno, with the sharp black tip and glossy black pen housing centered against a clean white background.
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BFF Liquid Liner

Numero Uno

4.8
Rated 4.8 out of 5 stars
3,535 Reviews

Numero Uno - True black

25% off sitewide + free gifts on $50+ & $75+ orders!

🌱 Vegan
🐰 Cruelty-free
🎨 Ultra-pigmented
⭐ One-swipe payoff
💌 Long-lasting
❤️ Matte finish

review

4.8
Rated 4.8 out of 5 stars
Based on 3,535 reviews
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3,535 reviews
  • Haley b.
    Verified Buyer
    Reviewing
    Leafeon
    I recommend this product
    Rated 5 out of 5 stars
    8/31/26
    Cute, stays well

    Pigmented

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  • Mikkala H.
    Verified Buyer
    Reviewing
    Black
    I recommend this product
    Rated 5 out of 5 stars
    8/25/26
    Glides on smooth

    Highly waterproof with a smooth application that makes it easy to do thin lines as well as thicker lines. Great product! Will definitely be getting more colors!

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  • Lessly P.
    Verified Buyer
    Reviewing
    Numero Uno
    I recommend this product
    Rated 5 out of 5 stars
    8/17/26
    Amazing Eyeliner

    It’s called BFF for a reason. By far the best eyeliner I own! The pigment is very rich and applies so seamlessly on my eye. I thought I was bad at applying my eyeliner since nothing would stay even but it turns out I just needed this eyeliner.

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  • Clémentine H.
    Verified Buyer
    Reviewing
    Numero Uno
    I recommend this product
    Rated 5 out of 5 stars
    8/17/26
    I pray they don't change the formula

    I have been using this eyeline religiously for at least 5 years and NOTHING compares to it. I live in Canada and it really is a struggle to order from california but every year i go through with it simply because i cannot find any eyeliner that comes close to this one. It is long lasting, doesn't smudge or bleed troughout the day, easy to apply, doesn't dry out and I can use one liner for MONTHS. don't look further, this one is simply unbeatable.

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  • Jessica R.
    Verified Buyer
    Reviewing
    Leafeon
    I recommend this product
    Rated 4 out of 5 stars
    8/11/26
    Pretty Sage color

    Beautiful sage color. If wearing over eyeshadow, I find it best to work in light layers for maximum pigment.

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