Easiest to apply eyebrow growth serum: Plume Lash & Brow Enhancing Serum | $95

If you’ve been on the hunt for how to grow thicker eyebrows, Plume Lash & Brow Enhancing Serum is probably the one you’ve heard about the most. It’s more widely available at green beauty retailers than our other picks, and it has overwhelmingly positive reviews.

We tried it and were immediately impressed. Nicolle has a thyroid autoimmune disorder that can cause hair (lashes included) to fall out. Because of this she was able to test Plume Lash & Brow Serum on a hole in her lash line. Within 10 days, new growth was visible where nothing had grown in three months on its own. And within a month, the hole in her lash line was gone.

Plume’s texture is also really easy to use and apply. The applicator is the most effective one out of our top three picks and there was no blurred vision or irritation if the formula got into Nicolle’s eyes (coming from the most sensitive one on our team, that’s saying something).

But, Plume irritated Lisa’s eyes. So if you historically have eye irritation issues or issues with castor, this might not be the one for you.

Pros of Plume Lash & Brow Growth Serum:

• WORKS! And incredibly fast—we saw results in 10 days, and the hole in Nicolle’s lashes was gone within 30 days.
• Super easy to apply—no mess, no fuss, can wear it during the day or night.
• Cruelty free + safer ingredients.
• Works on brows AND lashes.
• Can be used during pregnancy (according to their website).
• Natural ingredients.
• Tons of positive reviews. 

Cons of Plume Lash & Brow Growth Serum:

• Plastic packaging.
• May cause irritation for some people.
• Price.

Best budget eyebrow growth serum: Papillon Organic Eyelash Growth Serum | $55

When we saw Papillon’s ingredient list (comprised of 95% certified organic ingredients), we knew we had to give it a try. Check it out:  

• Organic castor oil
• Organic argan oil
• Organic camellia japonica seed oil
• Organic camellia sinensis seed oil
• Matcha and camellia japonica flower and seed extracts
• Vitamin E (non-GMO, sunflower derived)

Castor, argan and camellia oils offer omega-3 & -6 fatty acids, which help moisturize dry lashes and reduce breakage. These are paired with camellia sinensis seed oil derived from matcha, which studies show strengthen and encourage hair growth (2). And vitamin E promotes blood flow and encourages healthy growth.

Papillion Organic Eyelash Growth Serum 30 day before and after….

I tested Papillon Organic Eyelash Growth Serum on my brows for 30 days and this is what I saw:

HELLO signs of thicker, fuller brows. Not only that, you can see some new growth coming in, some of the gaps in my brows are smaller and my brows look overall fuller.

Pros of Papillon Lash & Growth Serum:

• 95% certified organic ingredients.
• Bottled in the USA.
• Cruelty free & vegan.
• Packaged in glass.
• Showed noticeable eyebrow growth in 30 days.
• Can be used on lashes AND brows.
• More affordable.

Cons of the Papillon Lash & Growth Serum:

• Viscous texture, which some people might find “too much.”
• Can be hard to apply with the included eye dropper.
• Not as easy to apply in the morning if you want to wear makeup.

Code NEWKNEW will save you 15% on Papillon here!

And it’s not just us who love it. Take a look at this text exchange with one of Nicolle’s friends:

Best vegan eyebrow growth serum: Luna Nectar Moon Boost | $76

Another lash and brow serum that’s been around for a few years, Luna Nectar Moon Boost is 100% organic and vegan, a feat for any formula. Nicolle loved this formula too—she noticed thicker lashes in two and half weeks, and her lashes kept growing even after she finished the serum bottle (which lasted longer than Plume’s tube). 

It’s easy to apply, slightly thicker than Plume, but less viscous than Papillon. Nicolle didn’t notice any eye irritation or blurred vision, and it wasn’t sticky or messy.

Pros of Luna Nectar Moon Boost:

• Fragrance-free.
• 100% organic & vegan ingredients.
• Really easy to apply.
• pH balanced.
• Works within two weeks and lashes KEEP growing, even after we stopped using it.
• Housed in fair trade bamboo tubes with recycled paper box outers.
• Lasts slightly longer than Plume’s tube—Luna Nectar’s tube is estimated to last 3 months.
• Can be used on lash extensions, lashes and brows.

Cons of Luna Nectar Moon Boost:

• Price—this is the Mama Bear (cheaper than Plume but more expensive than Papillon).
• May cause irritation for some people. 

Most luxe: Maya Chia: POWER FOL Multi-Correctional Eyelash & Eyebrow Growth Serum | $110

I’m going to say this is a full-speed-ahead purchase for me. If you’re struggling with thin or holey lashes or brows, or are in the hi-my-name-is-Lisa-and-I-suffer-from-90s-overplucking boat, this is the most effective lash/brow growth serum I’ve used. Here’s the proof.

I see darker, thicker, more defined brow hairs thanks to the conditioning agents in this formula. 

And I think my hair is growing faster. I have several wicked long rogues that I want to trim so badly but I’m leaving them for the sake of this experiment.

Also note how the hole in my brow right where the arch starts is filling in. Again, AFTER JUST 20 DAYS.

Pros of Maya Chia: POWER FOL Multi-Correctional Eyelash & Eyebrow Growth Serum

• A gel-based serum that…
  • Dries down all the way
  • You can layer makeup over
  • You can apply both day and night for faster results
• A dedicated lash brush and a dedicated brow brush—we haven’t seen this in other formulas, and we love it
• Very mild, barely there smell
• Adds instant volume
• Doubles as a brow and lash primer
• Uses clean, science-forward ingredients 
• Effective—I saw results and new growth within 20 days!
• Has a shelf life of about 18 months, according to Susanne—that’s so much better than the 12-month shelf life of many mascaras

Cons of Maya Chia: POWER FOL Multi-Correctional Eyelash & Eyebrow Growth Serum

• Price: This is a little more of an investment than other brow products we’ve reviewed, BUT we’ve seen more results, so it’s a little bit of six of one, half dozen of the other if you need brow or lash growth support.