Grow Potion


Grow Potion from Kosas is a 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. 

We love GrowPotion to help accelerate the appearance of fuller, feathery brows and longer, thicker lashes.

- Peptide Trio: Promotes the look of length and thickness.
- Vegan Keratin: Provides essential building blocks of healthy-looking, fortified hair.
- Provitamin B5: Promotes smooth, shiny hair.

In a 12-week, expert-graded study with 29 subjects*:
- 97% saw clinically measured improvement in brow length and lash volume

In a 12-week consumer study with 29 subjects:
- 93% would recommend this product to a friend
- 90% agreed it restored the appearance of misshapen or overplucked brows

*Results may vary. Brow results are expected sooner than lashes due to differing hair cycles.

Apply nightly and start with a clean, dry face. Use one dip of serum + swipe the flatter side of applicator to coat the entire brow area. 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). Wait 1-2 min for serum to dry. Don’t apply makeup immediately after or skip days, that’ll just delay your full, fluffy results. Follow up with Brow Pop, Air Brow - Tinted, Air Brow - Clear in the morning for your best brows ever.