This is how you get fuller eyebrows naturally

FASHION

BEAUTY

SKIN

4 min read

This is how you get fuller eyebrows naturally

4min read

If you have sparse or thinning eyebrows, you’re not alone—and it can feel like there’s nothing you can really do about it. Most people just accept it, or rely on makeup to cover it up every day. Some even consider microblading, thinking it’s the only real fix. But microblading comes with pain, risks, and results that often look anything but natural.

What many don’t know is that there’s actually a simple, natural way to encourage real eyebrow growth. The best part? It’s painless, affordable, and easy to use. The solution: a high-quality eyebrow growth serum.

Michelle Mason

May 29, 2025

What is an Eyebrow Serum?

An eyebrow growth serum is a specialized blend of ingredients designed to help stimulate brow hair growth, strengthen existing hairs, and improve overall fullness. It works by nourishing the hair follicles with ingredients like Hyaluronic Acid, Biotin (Vitamin B7), and Vitamin E.

Not only can it help sparse brows appear fuller over time, but with the right formula, it also conditions and protects the brows for a healthier, more defined look.

How it works

Nourishes the follicles

The serum delivers essential nutrients directly to the hair follicles to create a healthy environment for growth.

Extends the growth phase

It helps prolong the anagen (growth) phase of the hair cycle, so each eyebrow hair grows longer and thicker before naturally falling out.

Stimulates new hair growth

With consistent use, dormant follicles are reactivated, encouraging new hairs to sprout and fill in sparse or thinning areas.

What makes a good Eyebrow Serum?

The ingredients in eyebrow serums are what set the effective ones apart. There are several essential ingredients that high-quality serums use to naturally stimulate growth and strengthen brow hairs. The more of these ingredients a serum contains, the better and safer it tends to be.

It’s always a red flag if the ingredients aren’t clearly listed. Always check if you see any of the ingredients below. If so, it’s likely a good one—and it will give you the results you’re looking for.

What are the best brow serums available?

There are countless options for eyebrow growth serums, but many lack the essential ingredients needed to truly stimulate growth. We’ve done the research on all the popular serums out there to bring you a top 5 you can actually trust.

#1: smooche

Our top-pick for 2025

(4.9 / 5)

Ingredients:

Hyaluronic acid, Biotin (Vitamin B7), Vitamin E, Panax Ginseng, Swertia Japonica

Pros

✓ Contains 5/5 essential ingredients that make an eyebrow serum good

✓ 100% natural

✓ Results in 8 weeks

✓ Offers a 100% results guarantee

✓ Approved by dermatologists

✓ Currently has a Buy 1 Get 1 Free deal

Cons

𐄂 Not instant (yet none others have instant growth)

Conclusion

Smooche’s Eyebrow Growth Serum contains all of the essential ingredients that make an eyebrow serum truly effective—and it’s available in a concentrated formula designed for visible, lasting results. Not only that, but they offer a results guarantee - the only one in the list. That’s what makes it the clear number one choice in brow serums.

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#2 Pronexa

(4.2 / 5)

Ingredients:

Hyaluronic acid, Biotin, and more

Pros

✓ Contains some essential ingredients

✓ Works in 14 weeks

✓ Some natural ingredients

Cons

𐄂 Takes longer than others to work

𐄂 Can cause skin irritation

𐄂 No results guarantee

Conclusion

Pronexa’s brow serum is a popular option, but mostly for its name recognition. While it contains a few key ingredients, it takes longer to work and may cause irritation. With no results guarantee, it’s not the most reassuring choice.

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#3 RapidLash

(4.0 / 5)

Ingredients:

Not on their website.

Pros

✓ Works in 16 weeks

✓ Moisturizes hairs

Cons

𐄂 Does not disclose ingredients on their website

𐄂 Not a precision applicator

𐄂 Not clinically tested

𐄂 No results guarantee

Conclusion

RapidLash’s brow serum may seem like a solid pick, but it raises several red flags. The brand doesn’t disclose its full ingredient list, lacks clinical testing, and uses a basic brush instead of a precision applicator. With slow results and no guarantee, it’s far from the most trustworthy option.

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#4 Obagi

(4.0 / 5)

Ingredients:

Coconut oil, aluminum hydroxide, magnesium silicate, and more.

Pros

✓ Simple daily use

✓ Gentle on skin

✓ Affordable

Cons

𐄂 Not natural

𐄂 Not clinically tested

𐄂 Not as effective as others

𐄂 No results guarantee

Conclusion

Obagi’s brow serum markets itself as gentle and affordable, but it leaves a lot to be desired. With non-natural ingredients, no clinical testing, and weaker performance compared to other serums, it struggles to justify its place. Add in the lack of a results guarantee, and it’s not the most reliable choice.

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#5 Nuele

(3.9 / 5)

Ingredients:

Seed oil, Vitamin E, and more

Pros

✓ Popular

✓ Subtle enhancement

✓ Aesthetic packaging

Cons

𐄂 Not clinically tested

𐄂 Unpleasant scent

𐄂 Not as effective as others

𐄂 No results guarantee

Conclusion

Nuele’s brow serum is visually appealing and has some following, but the results don’t match the hype. With no clinical testing, only subtle effects, and an unpleasant scent, it leans more style than substance. Without a results guarantee, it’s hard to recommend for serious brow growth.

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Conclusion

Since only one of the top 5 contains all the essential ingredients, and even offers a results-guarantee, it’s an easy choice.

The Smooche Eyebrow Growth Serum clearly stands out in every category. Try it yourself and let us know which serum you went with—and how your brows transform.

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Why smooche is loved

Thanks to its unique and effective formula, over 10.000 eyebrows have grown thanks to smooche.