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GrowPotion

Fluffy Brow + Lash Boosting Serum

78 total customer reviews

Free Shipping on US Orders $40+ & Free Returns

Manifest Your Best Brows + Lashes.
Clean 2-in-1 brow and lash boosting serum powered by peptides and vegan keratin that accelerates the appearance of fuller, feathery brows and longer, thicker lashes. Safe for sensitive eyes. Prostaglandin-free.

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Benefits & Ingredients
Trio of Peptides

Supports length + thickness 

Vegan Keratin

Nourishes + strengthens

Pro-Vitamin B5

Promotes shine

Hyaluronic Acid

Hydrates + conditions

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Full-Size Brow & Lash Boosting Serum + Clear Brow Gel

Full Brow Support

GrowPotion Tonight, Brow Team Tomorrow

Treat
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Fluffy Brow + Lash Boosting Serum
78 total customer reviews
 
Define + Shape
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Dual-action defining pencil
180 total customer reviews
 
Fluff + Tint
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Volumizing treatment gel
285 total customer reviews
 
Lift + Set
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Lifting treatment gel
188 total customer reviews
 

Haircare Powered, 97% Naturally Derived

Unique blend of peptides and vegan keratin supports hair’s dream environment and is delivered through a hyaluronic acid-powered serum.

Daily Care for Your Littlest Hairs

Helps minimize breakage and loss while leaving brows and lashes soft + fluffy.

GrowPotion Tonight, Brow Team Tomorrow

When we launched Air Brow - Clear, our community was so impressed by the improved appearance of their natural brows, they started to apply it to their brows and lashes overnight.

 Sheena wanted to create a product formulated specifically to wear overnight (without the definition and hold of the brow gel), so we added 6x more powerful and effective hair-boosting actives in a concentrated serum to create GrowPotion.

 Now introducing the nighttime treatment partner to your daytime brow + lash routine.

Kosas Clean

Hypoallergenic. Ophthalmologist tested. Safe for sensitive eyes. Vegan. Prostaglandin-free. Fragrance-free.

Check out our Kosas Clean page for the full list.

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3.7
Rated 3.7 out of 5 stars
Based on 78 reviews
Total 5 star reviews: 30 Total 4 star reviews: 17 Total 3 star reviews: 15 Total 2 star reviews: 8 Total 1 star reviews: 8
60%would recommend this product
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78 reviews
  • SL
    Stephanie L.
    Verified Reviewer
    Age Range 25 - 34
    Astrology Air — Gemini; Libra; Aquarius
    Hair Color Brown
    Skin Tone Fair
    Skin Type Dry
    Recommend Yes -1000%
    7 months ago
    Age Range 25 - 34
    Astrology Air — Gemini; Libra; Aquarius
    Hair Color Brown
    Skin Tone Fair
    Skin Type Dry
    Recommend Yes -1000%
    Rated 5 out of 5 stars
    GREAT!

    I’ve been using this since August and it’s made a difference! I personally noticed a difference within a WEEK but everyone’s different. Here I am in November and still loving this product. My lashes were long-ish to begin with, but now they are curly and others have noticed it too! You can tell by the darkness of my lash line. I’ve recommended this to so many others, but remember PATIENCE and CONSISTENCY IS KEY.

  • S
    saige
    Verified Buyer
    Age Range 25 - 34
    Astrology Water — Cancer; Scorpio; Pisces
    Hair Color Black
    Skin Tone Dark
    Skin Type Dry
    Recommend Yes -1000%
    7 months ago
    Age Range 25 - 34
    Astrology Water — Cancer; Scorpio; Pisces
    Hair Color Black
    Skin Tone Dark
    Skin Type Dry
    Recommend Yes -1000%
    Rated 5 out of 5 stars
    significant volume improvement

    my eyelashes have always been really thin and sparseish and my brows have been overplucked in the past with some patches that have grown in but are thin. i have been using this for about a month now and i love it. my eyelashes are significantly longer (pretty shocked by that tbh) and my brow patches are showing realistic growth. wish i took before and afters but oh well. worked for me! would recommend absolutely.

  • SC
    Spencer C.
    Verified Reviewer
    Age Range 25 - 34
    Astrology Earth — Taurus; Virgo; Capricorn
    Hair Color Brown
    Skin Tone Light
    Skin Type Oily
    Recommend Yes -1000%
    8 months ago
    Age Range 25 - 34
    Astrology Earth — Taurus; Virgo; Capricorn
    Hair Color Brown
    Skin Tone Light
    Skin Type Oily
    Recommend Yes -1000%
    Rated 5 out of 5 stars
    Works great

    My wife and I have been using this for a month and have both seen tremendous growth and thickening of our eyebrows.

    I wish they made one for my receding hairline lol

  • R
    reneeshacie.
    Flag of United States
    8 months ago
    Rated 5 out of 5 stars
    Great Product!

    Hello, my name is Shacie and I'm a beauty expert with over 2 years experience in the beauty world and have tested countless products! One thing I haven't tested a lot of is brow and lash serums , I'm pretty much just stick to one lash serum but was excited to give this one a go since it's vegan . So I've been using this for over a month now and I am definitely guilty of over plucking my brows in my teenage years and as I've gotten older I have noticed my lashes are thinner than they used to be. Using this serum consistently every night I've seen great improvement in both my lashes and brows ! My brows are fuller and my lashes are a tad longer and seem overall more healthy! I do like the pretty purple packaging and I actually love the doe foot applicator! I totally recommend this!

    **This review was created through an educational promotional event hosted between the brand and beauty experts.**

  • R
    rachaeljoy
    Flag of United States
    8 months ago
    Rated 5 out of 5 stars
    Fluffy Brow & Lash

    These days the trend for make up definitely centers around the eyebrows. The eyebrows have such a strong presence on the face. There are so many ways brows are being tweaked: microblading, tattooing, penciling, etc. I am one that takes my brow game very seriously. I have been using the Kosas Fluffy Brow and lash Serum religiously every day. My eyebrows are microbladed, however I still need to pencil, grow, and soften them. I have found that using a brow serum helps to grow thicker and stronger, it allows the hairs to lay better, and for the pencil to be blended more. I really like the Kosas product. The packaging is beautiful and it is small and easy to stick in my purse. Also the brush applicator is easy to work with. I have started to use it on my lashes as well. Overall I am a fan and would recommend the Kosas Fluffy Brow and Lash Boosting Serum.

    **This review was created through an educational promotional event hosted between the brand and beauty experts.**

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