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.
- Trio of Peptides
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Supports length + thickness
- Vegan Keratin
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Nourishes + strengthens
- Pro-Vitamin B5
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Promotes shine
- Hyaluronic Acid
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Hydrates + conditions
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Apply nightly and start with a clean, dry face.
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Use one dip of serum + swipe the flatter side of applicator to coat the entire brow area.
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Use one dip of serum + angle the pointed tip to apply along the top lash line. Avoid the inner corner, waterline, and bottom lashes (upper application has the lower covered).
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Wait 1-2 min for serum to dry.
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Don’t apply makeup immediately after or skip days…that’ll just delay your full, fluffy results.
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Follow up with Brow Pop, Air Brow - Tinted, Air Brow - Clear in the morning for your best brows ever.
Full Brow Support
GrowPotion Tonight, Brow Team Tomorrow
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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Frequently Asked Questions
You've got questions, we've got answers
Can I skip nights?
For best results, use GrowPotion nightly. Consistency is key.
Can I use GrowPotion if I wear contacts?
Yes, this product was tested to be safe for contact lens wearers.
Can I use this product with lash extensions?
Yes! GrowPotion does not contain oils or solvents and won’t interfere with lash adhesives.
Does the product have any scent?
No, GrowPotion is completely fragrance free.
How long do results last?
Results vary, but to maintain fuller brows and lashes, continue using GrowPotion every night.
Is GrowPotion vegan?
Yes! GrowPotion is 100% vegan and cruelty-free.
When will I see results?
Results vary by individual. In an expert-graded study, 97% of subjects saw clinically measured improvement in brow length and lash volume within 12 weeks.* Brow results often appear sooner than lashes due to different hair growth cycles.
Where does this go in my routine? Before or after skincare?
Apply after cleansing and skincare. Wait 1–2 minutes for your skin to dry, then use a thin layer along the root of your upper lash line and on brows. Only 1 dip per lash/brow is needed—little goes a long way. Stay consistent and apply everyday (you can do it!).
Will this irritate my eyes?
GrowPotion is ophthalmologist tested, hypoallergenic, and safe for sensitive eyes. It is important to apply only a thin layer to brows and lashes, and avoid applying near the inner corner and inside the water line. If you experience irritation, please discontinue use and contact us.
How long should i continue using growpotion once i reach my desired results?
To maintain your results, keep applying nightly. Hair naturally sheds over time, so ongoing use helps preserve fuller brows and lashes!
