







✨ Unlock your power brows & lashes—because your eyes deserve the spotlight!
Kosas Grow Potion is a clinically proven, 2-in-1 eyebrow and eyelash serum that accelerates the appearance of fuller, longer, and thicker hair. Powered by peptides, vegan keratin, pro-vitamin B5, and hyaluronic acid, it nourishes and strengthens while being 100% clean, vegan, cruelty-free, and safe for sensitive skin. Experience visible results in just 12 weeks with a formula free from parabens, sulfates, silicones, and fragrances.
D**N
This really does work!
My lashes are much thicker and longer than before I used this. I love it and will continue to use it because it works! Who doesn't want nice thick longer lashes?
N**T
Nope
I did not see much of a difference. The application is difficult for lashes. It is much easier for eyebrows but the often would be white and flaking in the morning.
M**E
so far it's not irritating my eyes
Have been using this for about a week and so far it is not irritating my eyes. I was using a product made by Benefit that seemed to be helping my lashes but I was getting irritation. I liked that this product can be used on eyebrows as well. The brush is kind of a soft sponge - like a lipgloss applicator - that is slightly angled. Very easy to use.
R**M
It really works!
I bought this product because it was highly rated as an affordable way to get thicker eyebrows. And it really did work! I had pencil-thin eyebrows and now they have really filled in! I would definitely buy it again!
F**N
Results
Can't see much results
A**R
Doesn't work at all!
I've used the entre tube and can tell no difference. Do not recommend!
D**R
Brow and lash serum
Easy to use and it works!
R**W
Took a bit of time to arrive
I am early days on using this grow potion. I do notice a bit more fullness in the brows, eyelashes, not so much. But happy with the brows.
Trustpilot
2 days ago
2 weeks ago